Electron Configuration Notes Author: Default User2 Last modified by: Fox, Angela (Science) Created Date: 9/14/2006 1:06:48 PM Document presentation format: On-screen Show (4:3) Company: University Place School District Other titles. The orbitals are described completely by specifying three quantum numbers, but only two are used in this book. Hydrogen's electron configuration can then be described as 1s1. E-Learning is a full integrated lesson with all the notes, animations and. atomic number - symbol - electron configuration. Valence Electrons Be 1s2 2s2 2s2 2 Mg 1s2 2s2 2p6 3s2 3s2 2 Ca [Ar] 4s2 4s2 2 Be, Mg, and Ca are all in group 2 (or 2A). The electronic configuration of an atom in the quantum mechanical model is stated by listing the occupied orbitals, in order of filling, with the number of electrons in each orbital indicated by superscript. 5a Electron Configurations: Exceptions & Ions. • Add the correct number of electrons to each energy level. The electron configuration of an element is often given by writing the names of the subshells in the order in which they are filled, and using superscripts to indicate the number of electrons in each subshell: 1. The first orbital will hold two electrons so its summary electron configuration is 1s2. The atom has two unpaired electrons. Now, to assign electrons to shells and subshells we apply the 3 Electron Configuration rules given at the beginning of this lesson. This shows that _____. Atoms assume arrangements that have the lowest possible energy = ground-state electron configurations. Question: Write the full and short electron configuration for tellurium. From enterprise level remanufacturers, corporate refurbishers, to independent repair facilities, We delivers scalable, reliable and competitive value with respect to supply chain integration. Our table (below) is arranged by ENERGY, but the pattern is not immediately obvious. For example, the electron configuration of lithium, 1s²2s¹, tells us that lithium has two electrons in the 1s subshell and one electron in the 2s subshell. Be able to quickly identify an element based on its electron configuration or quantum numbers. Electron Configuration = shorthand notation to show how many e- are in each orbital. excited state Oct 24­5:37 PM Principle Energy Levels Q. zExample: Write the complete and the abbreviated electron configurations for vanadium. locating main group elements on the periodic table notes Given the electron configuration or noble gas configuration for an element, it is possible to determine its location on the Periodic Table without actually looking at a Periodic Table. Part 3: Electron configurations can be written out by showing the name of the sublevel (ex: 5d) and writing in the number of electrons in that level as a superscript (ex: 5d7). Autbau diagram for the elements up to and including vanadium. Valence Electrons Be 1s2 2s2 2s2 2 Mg 1s2 2s2 2p6 3s2 3s2 2 Ca [Ar] 4s2 4s2 2 Be, Mg, and Ca are all in group 2 (or 2A). Pauli Exclusion Principle - no two electrons in the same atom can have the same set of four quantum numbers. notebook 1 October 10, 2019 Introduction to Electron Configurations Nucleus Nucleus. 1) It has a single s-electron and hence can be placed along with alkali metal group. The optional configuration diagram also shows the spins of the electrons in occupied orbitals. The width of the energy bands depends on how strongly the electrons are bound to the atom. For each electron occupying the upper e g set of orbitals, the complex is destabilized bu a factor of 3/5 D o, or 0. Which of the following is the correct electron configuration for the bromide ion, Br-? a) [Ar] 4s 2 4p 5. Each orbital holds 2 electrons. Each energy level has sublevels: These are the energy levels and sublevels attached to each:. This is a fill-in-the-blank style notes outline for students to complete as you complete the accompanying Powerpoint lecture. Currently, only macOS and Linux supported. notebook 21 November 27, 2017 Nov 3­9:09 PM Einstein explained the photoelectric effect in the following manner: 1. The electron configuration of an atom of any element is the of electrons per sublevel of the energy levels of an atom in its ground state. ***Note the location of the electron subshells on the periodic table. Chemistry Notes Electron Configurations. ** Note: The sublevels are always listed in order of increasing energy. Step 3: Think about your result. And a system of organization was needed. Electron configuration 1s 2 2s 2 2p 2. " The Aufbau Principle prescribes a few simple rules to determine the order atomic orbitals are filled with electrons: Electrons always fill orbitals of lower energy first. 1s22s22p63s23p6. drN, in the configuration space of each electron, may be interpreted as the probability that an electron (we do not specify which one) shall be found in drl, another in dr2, and so on simultaneously-/-. You have been given a campus map with grid coordinates to help you find your way around campus. After focusing on the hydrogen atom for several lectures, the course moves on to consider atoms with more than one electron. First look at energy levels, also called the principal quantum number 1. Determining the electron configuration of an atom is easy once you know the relative energies of the orbitals. • Electron configurations are defined by the aufbau principle, the Pauli exclusion principle, and Hund’s rule. grouped by similar ground state valence electron configurations. Atomic Structure and Electron Configurations Multiple Choice PSI Chemistry Name:_____ 1. Each orbital can have two electron. History of the Atom and Electron Configuration Notes Outline. 11 Electron Configurations Noble Gas Electron Configuration 1s 2s2p Ne (Z=10) Valence electrons (orbitals with highest n) Inner shell e-Noble gases are unusually stable because they have completely filled orbitals Filled octet: 8e-They don’t want to gain or lose e-8. Electron configuration is a list showing how many electrons are in each orbital or subshell in an atom or ion; subshell notation: list subshells of increasing energy, with number of electrons in each subshell as a superscript; examples; 1s 2 2s 2 2p 5 means "2 electrons in the 1s subshell, 2 electrons in the 2s. Practice problems--Day 2 of notes--ODD pgs may be used--JUST CLEARLY TITLE EACH PG. the electron configuration of a noble gas. The electron affinity or propension to attract electrons is given by the electronic configuration. Question: Write the full and short electron configuration for tellurium. For instance, the electron configurations (shown in Figure 6) of the transition metals chromium (Cr; atomic number 24) and copper (Cu; atomic number 29), among others, are not those we would. check, and record the electron configuration and atomic radius below. For each electron occupying the upper e g set of orbitals, the complex is destabilized bu a factor of 3/5 D o, or 0. An arrow is used to represent an electron and its spin. To save room, the configurations are in noble gas shorthand. Carbon – 6 protons, 6 electrons C – 1s22s22p2 Electron-configuration:. 3d Electron Configurations and the Periodic Table Section Summary Assignment The electron configuration of an element shows how electrons are distributed in orbitals— which ones are filled and which ones remain vacant. Three rules are used to build the electron configuration: Aufbau principle Pauli Exclusion Principle Hund’s Rule Aufbau Principle Electrons occupy orbitals of lower energy first. The atomic number is also called the proton number. Note: The electron configurations in this worksheet assume that lanthanum (La) is the first element in the 4f block and that actinium (Ac) is the first element in the 5f block. 6 x 10 -19 Joules). 2 will first fill up the 1st shell in subshell 1s. It is important to note that the calculations reported above and in reference (1, are useful ta discern trends ilnn(: the 4th. e) [Ar] 4s 2 3d 10 3p 6. • Step 3-Draw a dot for each valence electron • For example, a dot diagram of Carbon would look like this: 6 C 12 C Step 1 C Step 2-Carbon is in group 14. Copper atom Cu 3d 4s 3p 3s 2p 2s 1s Energy level Copper(I) ion Cu Formation of Anions 16. There are 2 's'-type electrons on cobalt's outermost, or valence, shell. Hydrogen’s atomic orbitals. 160 #22, 23 Lesson 3(Friday 6th September): More practice with electron configurations Worksheet 1(b) Valence electrons notes. The 11 protons that establish the character of sodium still remain within its nucleus. NOTES: ELECTRONS IN ATOMS. Electron Configurations & Orbital Notation. Getting Started Scaffolding. The actual electron configurations are deduced from spectroscopic and chemical characteristics. The electron configuration can also be summarized by writing the symbol for the occupied subshell and adding a superscript to indicate the number of electrons in that subshell. Hydrogen - 1 proton, 1 electron H - 1s1 Ex. For brevity, many chemists record the electron configuration of an atom by giving only its outermost subshell, like 4 s 1 for potassium or 4 s 2 for calcium. Atoms of most nonmetallic elements achieve noble-gas electron configurations by gaining electrons to become , or negatively charged ions. Learn the three main parts of this notation to understand how it works. nOTES FROM yESTERDAY FOR ELECTRON CONFIGURATION AND bOHR dIAGRAMS. The complete electron configuration of an atom is shown by writing symbols for all of the occupied sublevels in sequence, starting from the lowest energy level. Condensed Electron Configurations. Rutherford's Nuclear Model of the atom A. Electron Configuration &Chemical Periodicity. Electron configuration mind map Studying IB Chemistry Definitions will be easy now. For Copper, remember Copper is one of those exceptions to the Electron Configurations, because normally you would write it 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, and 3d9. S: 1s2 2s2 2p6 3s2 3p4 S2−: 1s2 2s2 2p6 3s2 3p6 Note: Replacement of 1s2 2s2 2p6 correct configuration forby S[Ne] is acceptable. Adapted from notes by Stephen Cotton Section 15. This means there is one electron in the first energy level in the s orbital (spherical shape). Write the shorthand electron configuration for: Ni [Ar]3d84s2 Ge [Ar]3d104s24p2 Cs [Xe]6s1 Br [Ar]3d104s24p5 Bi [Xe] 6s24f145d106p3 4. The periodic table can be a powerful tool in predicting the electron configuration of an element. For Z=23 the full electron configuration is 1s2 2s2 2p6 3s2 3p6 4s2 3d3 and the abreviated configuration is [Ar]4s2 3d3 or [Ar]3d3 4s2. Atoms whose outer electrons have l=0,1,2,3,4 are referred to as S, P, D, F, G terms, respectively ( Note that an electron with l=0 is called an s electron; lower case terms refer to individual electrons. Electron Configuration and Emission Spectrum 2015. All orbitals of p sub-. Part 3: Electron configurations can be written out by showing the name of the sublevel (ex: 5d) and writing in the number of electrons in that level as a superscript (ex: 5d7). In simple terms, it means that every time, electrons are first filled up in an orbital singly and only when needed, do the electrons with opposite spin pair up. Note: The electron configurations in this worksheet assume that lanthanum (La) is the first element in the 4f block and that actinium (Ac) is the first element in the 5f block. The farther a shell is from the nucleus, the larger it is, the more electrons it can hold, and the higher the energies of those electrons. gas electron configuration Recognize the appearance of Bohr' s Model after an atom loses or gains electrons to form ions and/or how two atom share their electrons covalently to achieve noble gas electron configuration. these represent opposite spinselectrons with opposite spins can occupy the same orbital, so 2s can have two electrons 19. Continue to follow the periodic table, writing down the configuration as you go. Related Products: Electron Configuration Quiz. Number Of Printable Pages: 40. Give the electron configuration for Y in this form. The use of [email protected]^7 or higher is required. orbital, the electron configuration is written 1s1. It is written 1s 1. Notes for periodic classification of elements chapter of class 10 science. Abbreviated Electron Configurations zWrite the symbol of the closest noble gas with a lower atomic number than the element of interest in [brackets] followed by the remaining configuration. This handy chart compiles the electron configurations of the elements up through number 104. Electron Configuration Powerpoint with Student Notes Sheet This is a 23 slide powerpoint file with an editable double-sided page student notes. Electron Configurations & Orbital Notation. Abbreviated Electron Configurations – Optional Step • Rewrite the abbreviated electron configuration, listing the sublevels in the order of increasing principal energy level (all of the 3’s before the 4’s, all of the 4’s before the 5’s, etc. Determining the electron configuration of an atom is easy once you know the relative energies of the orbitals. The diatomic hydrogen molecule (H 2) is the simplest model of a covalent bond, and is represented in Lewis structures as: The shared pair of electrons provides each hydrogen atom with two electrons in its valence shell (the 1s) orbital. Updated September 13, 2019 Isoelectronicrefers to two atoms, ions, or moleculesthat have the same electronic structure and the same number of valence electrons. Electron Configuration # VE D or P Fe2+ Se Cl1-Sr Cu The UTC campus radio station operates at a frequency of 88. (see Study Guide Video for Question 4 and 5 or the other two tutorial videos below). ***Be able to give the inert gas core configuration, the set of four quantum numbers for any electron, and the orbital diagram for each element. Electron Parts delivers a complete OEM parts solution for housings, RF compliance, small parts and adhesives, and A+ grade LCDs and digitizers. The d sublevel can hold 10 electrons and there are 10 columns in the green section that correspond to ending electron configurations of d1, d2, d3 and so on. teaching suggestions, and related resources that complement this Concept Builder are provided on the Notes page. The 2pl subshell has a single unpaired electron which means that it possess non-zero spin (S=I/2, 2S+1=2), and because the electron is in a p orbital it possess one unit of orbital angular momentum (L = 1). This decides the electron capacity of the. The Physics Classroom » Concept Builders » Chemistry » Complete Electron Configurations » Teacher Notes Notes: The Complete Electron Configurations Concept Builder is an adjustable-size file that displays nicely on smart phones, on tablets such as the iPad, on Chromebooks, and on laptops and desktops. " The Aufbau Principle prescribes a few simple rules to determine the order atomic orbitals are filled with electrons: Electrons always fill orbitals of lower energy first. Valance Electrons, Lewis electron Dot Structures and On your notes, try these elements on your own: a) H the same electron-dot structure. ( WORD file) The WHOLE powerpoint is shown in the free pdf preview file. An explanation of hydrogen’s line spectrum - expected discontinuous, suggested in ground state with an n = 1, when energy added electron moves to excited state (n=2), moves to ground state and emits energy/photon;. Notes #3: Electron Configurations. ) Number of Element electrons Aluminum Silicon Phosphorus. Each energy level has sublevels: These are the energy levels and sublevels attached to each:. Note that when writing the electron configuration for an atom like Fe, the 3d is usually written before the 4s. On slides 12-17 I lead students through electron configuration practice as they fill them in on the first and second page of their notes. Write the complete electron configuration for each atom on the blank line. • Sodium marks the beginning of a new row. half- filled. Ground State Single Excitation Double Excitation σ2 g σ 1 gσ * u 1 σ* u 2. Give the full electron configurations (NOT the Noble Gas) for the following atoms/ions. Electron Conﬁguration Steps ❖ Write down the row number then determine subshell ❖ Go through the subshell - write down the number of columns you go through (represents electrons - superscript). The valence configuration for first series transition metals (Groups 3 - 12) is usually 3d n 4s 2. They list the elements that are similar in terms of their electrons. Two ways of writing configs. Sample exercise 5. This is 1s1. Spin Quantum Number, m. Isoelectronic chemical species typically display similar chemical properties. Another electron spinning in the opposite direction would have an opposing magnetic field. in the purple section that correspond to ending electron configs of p1, p2, p3 and so on. The valence electrons in the highest energy level interact strongly with those of neighboring atoms and can be solved relatively easily from an atom; with a very large number of atoms, a single electron can no longer be assigned to one single atom. Then Platier implemented the updated tool to study atmospheric. The quantum model improves of Bohr's Diagram, it describes the electrons in an atom of all elements on the periodic table. Valence electrons play a critical role in chemical bonding and can be represented with Lewis dots. Thomson's 1897 experiments which helped bring understanding of the electron as a fundamental unit of matter. This corresponds to the loss of one 3s electron. ***Note the location of the electron subshells on the periodic table. There are rules governing the placement of the electrons into the orbitals. Another important point to note, is that the filling of electrons in subshells doenst actually fill from low to high. iOS Notes Apple requires privacy descriptions to be specified in Info. Shells help in understanding the distance of electrons from the nucleus. c) [Ar] 4s 2 3d 10 4p 6. instead of giving the 4 quantum numbers for every electron. Full descriptions from write-up sources. CC4c lesson from the new Edexcel combined science GCSE (9-1) all about electron configuration and the periodic table. Electron configurations of atoms follow a standard notation in which all electron-containing atomic subshells (with the number of electrons they hold written in superscript) are placed in a sequence. The full electron configuration (1s 2 2s 2,etc. The class configuration is K-1, 2-3, 4-5, and 6-8. Writing Electron Configurations. Electron configurations describe where electrons are located around the nucleus of an atom. Whoops! There was a problem previewing Electron Configuration Powerpoint notes. 3b Electron Configurations for Elements in Periods 1–3 7. Find the magnetic field both inside and outside the slab. It packs a lot of information into a little space and it takes a little practice to read. Energy Level - Principal Quantum Number (n) b. (Due on Friday for M/W. To determine the electron configuration of a particular atom, start at the nucleus and add electrons one by one until the number of electrons equals the number of protons in the nucleus. Notice the first rule is the Aufbau rule, which simply says that the electrons go into low energy orbitals first. Non-metals tend to gain electrons to attain Noble Gas configurations. Tungsten has the highest melting point and lowest vapor pressure of all metals, and at temperatures over 1650°C has the highest tensile strength. That leaves 4 electrons, which must be placed in the 2p orbital shell. This law was given this name because of its resemblance with the octaves of music where the eighth note. The Geolocation API provides simple methods for getting and tracking the current position of the device using GPS, along with altitude, heading, and speed information if available. The atomic number is also called the proton number. d) [Ar] 4s 2 3d 10 4p 6 5s 1. One electron volt is the energy that an electron gains when it travels through a potential difference of one volt (1 eV = 1. Hydrogen’s atomic orbitals. Electron Configuration Notes Author: Default User2 Last modified by: Scott Wolfrey Remember Levels and Sub Levels Sub Groups PowerPoint Presentation s Orbital p Orbital d Orbital f Orbital Electron Energy Level Notes Rules to Follow Rules to Follow Let's Work Backwards De-code the code De-code the code De-code the code De-code the code De. Chemistry 1000 CEM1000W. Day 4 - Shortcuts for Electron Configurations. Electron configurations are used to indicate the arrangement of electrons around the nucleus of an atom in its ground state. s, p, and. Worksheet #7 Atomic Orbitals and Electron Configurations (4p. Helium; Beryllium; Oxygen, Neon; Silicon, Argon; Krypton , Calcium, Gold, Cesium, Lead 2. Write the electron configuration for phosphorus (P): nucleus. - helps chemist understanding how elements form chemical bonds. There are 2 's'-type electrons on cobalt's outermost, or valence, shell. Answer Lawrencium has fourteen more electrons as compared with actinium. Welcome @ Frank's; electron Tube Data sheets. The term symbol for this subshell configuration is therefore IS. Gen Chem Unit 3 Notes # 3: electron configuration Rating: (0) Author: Margaret Germann. Configuration is governed by three principles: 1 = Aufbau Principle German for “arrange”. ***Be able to give the inert gas core configuration, the set of four quantum numbers for any electron, and the orbital diagram for each element. This shows that _____. General electronic configuration of s-block elements: ns 1-2 where n=2-7. When there is one in each orbital of that type, then the second electron on each horizontal line will go down. The symbols used for writing the electron configuration start with the shell number (n) followed by the type of orbital and finally the superscript indicates how many electrons are in the orbital. 3c Electron Configurations for Elements in Periods 4–7 7. As an example, Lithium has 3 electrons. Formula: c = λv Electromagnetic Radiation: Form of energy that acts as a. The LFSE for metals with d 1, d 2, or d 3 electron configurations is unambiguous, and is equal to the number of electrons multiplied by (0. The electrons in the highest numbered subshells are the valence electrons, which comprise the valence shell of the atom. It is important to understand that although sodium now has the electron configuration of neon, it is not neon. Electron configuration for N3- Because it has a charge of -3, there are three extra electrons to deal with. More Information on Tungsten (Atomic Structure, Electron Configuration, etc. Electron Configuration The electrons in an atom fill up its atomic orbitals according to the Aufbau Principle; "Aufbau," in German, means "building up. The maximum number of electrons that can occupy an orbital labeled d xy is (A) 1 (B) 2 (C) 3 (D) 4. Example: Electron Configuration for Magnesium Mg = 1s2 2s2 2p6 3s2 Write the complete electron configuration for each of the following elements. Notice the first rule is the Aufbau rule, which simply says that the electrons go into low energy orbitals first. Theory Behind Electron Configuration. Record the electron configuration and atomic radius of each. Revision notes on the structure of the periodic table chemistry, groups and periods, metals and non-metals, physical properties of the elements of the periodic table, chemical reactions of the elements of the periodic table, help when revising for AQA GCSE chemistry, Edexcel GCSE chemistry, OCR GCSE gateway science chemistry, OCR 21st century science chemistry GCSE 9-1 chemistry examinations. Stability Ion Electron Configuration Write the e- config for the closest Noble Gas EX: Oxygen ion O2- Ne 1980 (a) Write the ground state electron configuration for an arsenic atom, showing the number of electrons in each subshell. For example, the electron configuration of lithium is $$1\text{s}^{2}2\text{s}^{1}$$. Each principle quantum number refers to the energy level (or shell) in the atom. Atoms are neutral and therefore have the same # of electrons as protons. That number tells you the number of protons in every atom of the element. (Note: The symbol for picometer is pm. IB Chem Notes for New 2016 Syllabus. " The Aufbau Principle prescribes a few simple rules to determine the order atomic orbitals are filled with electrons: Electrons always fill orbitals of lower energy first. University. It states that only one electron will be put in each orbital of a sublevel until all of them are filled, and after that, they may be paired up until the sublevel is full. Writing electron configurations. Shells help in understanding the distance of electrons from the nucleus. does not account for the stability of most atoms since accelerating electrons. Electron Configuration and Chemical Periodicity Orbital approximation: the e− density of an isolated many-electron atom is approximated by the sum of the e − densities of each of the individual e − taken separately. Another isoelectronic series is P 3–, S 2–, Cl –, Ar, K +, Ca 2+, and Sc 3+ ([Ne]3s 2 3p 6). Electron Configurations. Writing Atomic Electron Configurations. Electron Configuration In this video Paul Andersen explains how to write out the electron configuration for atoms on the periodic table. Coyle Electron Configuration The way electrons are arranged around the nucleus. The term symbol for this subshell configuration is therefore IS. For any atom, the electrons fill the energy levels starting from the lowest energy (innermost shell). Half of the distance between the nuclei of identical atoms that are bonded together #1. The LFSE for metals with d 1, d 2, or d 3 electron configurations is unambiguous, and is equal to the number of electrons multiplied by (0. 2The electron configuration for phosphorus, written in core notation, is [Ne] 3s 3p3. Tags: Question 14. the electron configuration of a noble gas. Now, to assign electrons to shells and subshells we apply the 3 Electron Configuration rules given at the beginning of this lesson.  Identify the name, symbol, valence electrons of the element or ion based on the electron configuration or box diagram. Thomson's 1897 experiments which helped bring understanding of the electron as a fundamental unit of matter. The distribution of electrons into different shells, sub shells and orbitals of an atom is called its electronic configuration. In electron configurations, write in the orbitals that are occupied by electrons, followed by a superscript to indicate how many electrons are in the set of orbitals (e. Our table (below) is arranged by ENERGY, but the pattern is not immediately obvious. After focusing on the hydrogen atom for several lectures, the course moves on to consider atoms with more than one electron. –Describe the formation of cations from metals, and of anions from nonmetals. The valence configuration for first series transition metals (Groups 3 - 12) is usually 3d n 4s 2. The name of each block is determined by whether an s, p, d, or f sublevel is being filled in successive elements of that block. The arrangement of electrons among the orbitals of an atom is called the electron configuration of the atom. CHEMISTRY 151 - ORBITAL DIAGRAMS AND ELECTRON CONFIGURATIONS KEY 1. Adapted from notes by Stephen Cotton Section 15. 3c Electron Configurations for Elements in Periods 4-7 7. Notes: Unit 6 Electron Configuration and the Periodic Table • In the 1790's Antoine Lavoisier compiled a list of the known elements at that time. •Some actual electron configurations differ from those assigned using the Aufbau Principle because half-filled sublevels are not as stable as filled sublevels, but they are more stable than other configurations. electron configuration for any atom. The most important thing to remember is that electrons fill orbitals from lowest energy to highest energy. The number of notations in the electronic configuration will show the number of shells of electrons the atom has, showing the period. An electron configuration is a description of the relative locations of electrons in an atom or ion. Note the names of certain groups; Alkali metals, Halogens Link to electron configuration: Points to note: Number of valence electrons (electrons in outer energy level) is same as group number for Group 1 -12 For Group 13 -17 subtract 10 to get to the number of valence electrons. 5 Electron Configuration Notes __ /__ pts First Last Name___Per__ review T F The electron configuration of Boron is 1s2 2s2 2p5 21. Writing electron configurations. The complete electron configuration of an atom is shown by writing symbols for all of the occupied sublevels in sequence, starting from the lowest energy level. There is a ranking or heirarchy of the shells, with the shells further from the nucleus having a higher energy. Long-hand version: 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^1 Short-hand version: [Xe] 6s^1 Note: The "^" symbol means the the following number is in the form of a superscript. text explanation. Now, to assign electrons to shells and subshells we apply the 3 Electron Configuration rules given at the beginning of this lesson. Because most transition metals have two valence electrons, the charge of 2+ is a very common one for their ions. -2 main parts of an atom: Nucleus-99. CHEMISTRY 151 - ORBITAL DIAGRAMS AND ELECTRON CONFIGURATIONS KEY 1. Energy Levels: the energy levels of electrons Valance Electrons: The electrons in the outermost. It is the electrons that participate in bonding and are the source of any behavior that behavior that an atom or ion has. Electron Configuration Chemistry Mrs. Dronstudy provides free comprehensive chapterwise class 10 Science notes with proper images & diagram. The spectroscopic methoduses superscripts to show the number of electrons in a subshell (specific orbitals are not shown). Start at Hydrogen. 2­8­18­5 _____ c. In the pattern of other quantized angular momenta, this gives total angular momentum. E-Learning is a full integrated lesson with all the notes, animations and. For brevity, many chemists record the electron configuration of an atom by giving only its outermost subshell, like 4 s 1 for potassium or 4 s 2 for calcium. Energy Levels: the energy levels of electrons Valance Electrons: The electrons in the outermost. 12/6/2017 Period 1 and 4 your notes will be available tomorrow. Worksheet #7 Atomic Orbitals and Electron Configurations (4p. The class configuration is K-1, 2-3, 4-5, and 6-8. 1 Electron Configuration in Ionic Bonding zOBJECTIVES: -Use the periodic table to infer the number of valence electrons in an atom, and draw it's electron dot structure. It is called the "Box and Arrow" (or circle and X) orbital configuration. The most important thing to remember is that electrons fill orbitals from lowest energy to highest energy. Question: 9) (12 Pts) For The Iridium Cation Irt, I) Give The Expected Electron Configuration (Note: It Is Okay To Use The Condensed Noble Gas Notation), Ii) Use Orbital "box" Diagrams For The Outermost Electrons To Show The Proper Valence Electron Configuration, And Iii) Give The Predicted Number Of Unpaired Electrons. A single electron configuration exists for the atoms of each different element 2. The 2pl subshell has a single unpaired electron which means that it possess non-zero spin (S=I/2, 2S+1=2), and because the electron is in a p orbital it possess one unit of orbital angular momentum (L = 1). Period 1 – elements 1 to 2 (2 elements). More Information on Tungsten (Atomic Structure, Electron Configuration, etc. 5a Electron Configurations: Exceptions & Ions. Indicate the number of valence electrons and determine if the atom/ion is diam agnetic or paramagnetic. Element Full Electron Configuration Core Notation Rh Li Sn Use the periodic table to identify the neutral atoms having the following electron configurations: Electron Configuration Element Name [Ne] 3s2 [Ar] 4s2 3d5 [Kr] 5s2 4d10 5p3 [Xe] 6s2 4f7 Consider the following six ions: N3-O2-F-Na+ Mg2+ Al3+ a) How many electrons are present in each ion?. (Due on Friday for M/W. Normally, nitrogen has 7 electrons. What are the answers to section 6. fElectron Configurations of Cations of Transition Metals When a cation is formed from an atom of a transition metal, electrons are always removed first from the ns orbital and then from the (n – 1)d orbitals. Periodic Properties and Periodicity Class Notes History - Periodic Table Periodic Properties Review of electron configuration & quantum numbers I. NOTE: Ions having noble gas electron configurations with full valence orbitals are no longer reactive; hence, they are considered core electrons. ) Appendix 6 will be helpful with this material. Tags: Question 14. Key Concepts. History of the Atom and Electron Configuration Notes Outline. Valence electrons play a critical role in chemical bonding and can be represented with Lewis dots. Study 132 Chapter 8: Electron Configuration and Chemical Periodicity flashcards from Abby S. 10/29/2015 Then we went over notes talking about electron configurations. d) [Ar] 4s 2 3d 10 4p 6 5s 1. 7s 7p 6s 6p 6d 5s 5p 5d 5f. The electron configuration of any atom may be written by reading the periodic table from left to right in order of increasing atomic number and by correlating the areas in the chart with the various sublevels. part i: rules for e- configurations 1. + charge Electron Dot Structure or Lewis Dot Diagram A notation showing the valence electrons surrounding the atomic symbol. b) [Ar] 4s 2 3d 10 4p 5. Electron Configuration Notation:-shows the arrangment of electrons around the nucleus of an atom. ) Element Atomic # Orbital diagram Electron Configuration H He Li Be B C N O F Ne Na. Electron Configurations • Electron configuration describes the distribution of electrons among the various orbitals in the atom • Electron configuration is represented in two ways - The s, p, d, f notation - An orbital diagram C 1s22s22p2 Mn 1s22s22p63s23p64s23d5 3d 4s. Be able to quickly identify an element based on its electron configuration or quantum numbers. The electronic configuration for neon, which has 10 electrons is 1s2,2s2,3p6 2. zExample: Write the complete and the abbreviated electron configurations for vanadium. ( WORD file) The WHOLE powerpoint is shown in the free pdf preview file. 5a Electron Configurations: Exceptions & Ions. Note that we have added spin into the our quantum theory as a kind of a posteriori consideration, which seems a little contrived. Chemistry Standard 3A Electron Configuration Identifying energy levels and orbitals 4s WHAT IS IT? He LEVEL 1 2 3 4 5 6 7 MAX # OF e- HOW DO YOU FIGURE IT OUT?. help explain the properties of elements and the structure of the periodic table. tells you the. V8CacheOptions is a new webpreference option to enforce code caching policy. c) [Ar] 4s 2 3d 10 4p 6. The electrons are filled into the 1s, 2s, and 2p orbitals. Electron Configurations - Solutions Note: The electron configurations in this worksheet assume that lanthanum (La) is the first element in the 4f block and that actinium (Ac) is the first element in the 5f block. is the currently accepted atomic model. These notes go PERFECTLY with my Powerpoints! They're in Microsoft Word files, so you can edit them to fit your needs. - when writing electron configuration, start with the first element in the periodic table and add an electron to its lowest available energy level o 1 Hydrogen 1 e- 1s o Helium 2 e-s 1s2 o 1Lithium 3 e-s 1s22s1 or [He]2s. Electron configurations are a simple way of writing down the locations of all of the electrons in an atom. Fill in the electron configuration diagram for the copper(I) ion. An arrow is used to represent an electron and its spin. Atomic Structure and Electron Configurations Multiple Choice PSI Chemistry Name:_____ 1. 8/8: Electron configuration notes CLICK HERE for video 8/9: Electron configuration and orbital filling diagrams practice (key in files, scroll down), CLICK HERE for video Week 3: 8/12: SGM Pre-Test, CLICK HERE for notes on ions, isotopes and average atomic mass 8/13: Bohr Model CLICK HERE for notes and Practice. of the electron inside the. The 11 protons that establish the character of sodium still remain within its nucleus. g electronic configuration of carbon is 2. Schreifels Chemistry 211 Chapter 8-* Development of the Periodic Table Mendeleev developed periodic table to group elements in terms of chemical properties. The x-axis shows the allowed energy levels of electrons in a hydrogen atom, numbered from 1 to 5. Aufbau Principle. Name: Date: Block: 1 CP Chemistry I Notes - Electron Configuration RULES GOVERNING ELECTRON CONFIGURATIONS: Aufbau Principle - an electron occupies the lowest-energy orbital that can receive it. half- filled. for the different possible electron configurations becomes more similar from Sc to Cu, so that exceptions to the elec- tron configuration [Ar13d"4s2 are not surprising. The symbols used for writing the electron configuration start with the shell number (n) followed by the type of orbital and finally the superscript indicates how many electrons are in the orbital. Abbreviated Electron Configurations zWrite the symbol of the closest noble gas with a lower atomic number than the element of interest in [brackets] followed by the remaining configuration. An arrow is used to represent an electron and its spin. -1 (negative) 1/1840. 5 Electron Configuration Notes __ /__ pts First Last Name___Per__ review T F The electron configuration of Boron is 1s2 2s2 2p5 21. Electron Configurations ●The quantum mechanical model of the atom predicts energy levels for electrons; it is concerned with probability, or likelihood, of finding electrons in a certain position. Electron Configuration # VE D or P Fe2+ Se Cl1-Sr Cu The UTC campus radio station operates at a frequency of 88. Scanning Electron Microscope Operation Page 2 of 85 Author: Roger Robbins Date: 9/29/2015 The University of Texas at Dallas Scanning Electron Microscope Operation Zeiss Supra-40 Roger Robbins 9/10/2010 Update 9/29/2015 Table of Contents. We might be able to use that argument to explain the trend within a group, but when we look at the atomic radius trend going across a period the radius decreases. gas electron configuration Recognize the appearance of Bohr’ s Model after an atom loses or gains electrons to form ions and/or how two atom share their electrons covalently to achieve noble gas electron configuration. Here's cobalt's electron configuration: [Ar] 3d7 4s2. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 (note: 4p6 is not the highest electron configuration, but. Once you reach the end of the. yml in the root of your project, which matches your publish setting from electron-builder config (but in yaml format). Note: If only Na or Mg is used 1 point can be earned by showing the respective electron configuration and using one of the other explanations Shielding/effective nuclear charge discussion earns the third point. This notation means that strontium has all of krypton’s electrons plus two more in the 5s sublevel. Note the arrows indicating opposite spins (Pauli exclusion principle). oxygen Your answer should be in this format: [Ne] 3s2 3p6 (there is a space between each orbital). CC4c lesson from the new Edexcel combined science GCSE (9-1) all about electron configuration and the periodic table. 1) It has a single s-electron and hence can be placed along with alkali metal group. Coyle Electron Configuration The way electrons are arranged around the nucleus. Now, to assign electrons to shells and subshells we apply the 3 Electron Configuration rules given at the beginning of this lesson. Les protons et les neutrons forment le noyau de l’atome, et représentent la plus grande partie de sa masse. Magnesium -12 electrons; 1s^2s^2p®3s^ 1 n energy level 1 has 2 electrons f « I energy level 2 has 8 electrons ? n S energy level 3 has 2 electrons e « r 9 y. Up to Z=36, the electron configuration in sub-shell notation is: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶. in that sublevel. However, we do find exceptions to the order of filling of orbitals that are shown in Figure 3 or Figure 4. n: Principle Quantum # 1. University of Cape Town. This boilerplate was built as a template for vue-cli and includes options to customize your final scaffolded application. The electron configuration can be written as 1s 2 2s 2 2p 4. Notice the first rule is the Aufbau rule, which simply says that the electrons go into low energy orbitals first. This notation means that strontium has all of krypton’s electrons plus two more in the 5s sublevel. CHEM 1124Q Lecture Notes - Lecture 7: Pauli Exclusion Principle, Electron Configuration, Aufbau Principle Lecture Note CHEM 1124Q Lecture Notes - Lecture 21: Potassium Chloride, Spectator Ion, Sodium Hydroxide. In this way, you would consider the electronic configuration of oxygen to be $1s^22s^22p^4$. Ch 23 Transition Metal Chemistry Notes- PART -1 Electron Configurations of Atoms and Ions. IB Chem Notes for New 2016 Syllabus. But because of its charge, we have to add 3 more. Determining the electron configuration of an atom is easy once you know the relative energies of the orbitals. Have you ever heard about. The periodic table can be a powerful tool in predicting the electron configuration of an element. of the atom states that electrons exist in An orbital is a In this model, electrons are ass'gned a set of numbers and letters that descrbe their location in the energy levels =. Main article: Electron configuration This page shows the electron configurations of the neutral gaseous atoms in their ground states. the electron configuration of a noble gas. PPT Notes - Electron Configuration - Hotel (slides 16-26) Read pgs 361 - 366 Problems pg 386, # 33 and 45. 4; Valence electrons: 4; Note: The fullstop is not a decimal point. Answer the following questions using your Unit 3 notes. The remaining electron will appear in the second shell in the 2s subshell. Electron Configuration. 1 (b) The electron configuration of an atom or ion may also be expressed in another form, e. • By the 1870's _____ were known. PATTERN! There are exceptions, but we don’t worry about them. Now, to assign electrons to shells and subshells we apply the 3 Electron Configuration rules given at the beginning of this lesson. Electron Configuration Arrangement or distribution of electrons in the orbitals of an atom. Chemistry can tell us how three tiny particles - the proton, neutron and electron - come together in trillions of combinations to form everything. • "Ghost" electrons may be used for the lower energy electrons. • Electron configuration of ions Notes: • Arrows must be in opposite directions to get credit. Guided Notes: Electron Configuration Page Number: Bell Ringer. Hydrogen is unique among the elements - it is the only one whose atoms have just one electron. The difference in energy of a neutral atom and its anion in gas phase is the electron affinity (A) which may be equated with the electron-gain enthalpy with a minus sign, at T=0K. ELECTRONS AND THEIR ENERGIES. Important Note: for non-transition elements, known as main-group elements, only include s and p electrons. (I have yet to write and post them. The Quantum Model Quantum numbers are solutions to the wave equations of electrons. There are 2 's'-type electrons on cobalt's outermost, or valence, shell. Now, to assign electrons to shells and subshells we apply the 3 Electron Configuration rules given at the beginning of this lesson. Energy levels tell how far an electron is located from the nucleus. Using The Periodic Table to Write Electron Configuration. 4 Notes (pg. For more see the Periodic Table and Electron Structure notes below. If you really mean titanium it is: 1s2, 2s2 2p6, 3s2,3p6,3d2, 4s2. Ex: He = 1s. + charge Electron Dot Structure or Lewis Dot Diagram A notation showing the valence electrons surrounding the atomic symbol. View Worksheet ; Purpose: This is a fill-in-the-blank style notes outline for students to complete as you complete the accompanying Powerpoint lecture. Ground State Single Excitation Double Excitation σ2 g σ 1 gσ * u 1 σ* u 2. Electron Configuration Notes Author: Default User2 Last modified by: Scott Wolfrey Remember Levels and Sub Levels Sub Groups PowerPoint Presentation s Orbital p Orbital d Orbital f Orbital Electron Energy Level Notes Rules to Follow Rules to Follow Let's Work Backwards De-code the code De-code the code De-code the code De-code the code De. Creator of the MODERN Periodic Table 1834 – 1907 Russian scientist Arranged all of the 63 known elements by their atomic weights Organized elements into groups possessing similar properties Left gaps for undiscovered elements predicted a new element would one day be found and deduced its properties. Which Elements are d-block or f-block? Most current Periodic tables have:-. Background Information: The arrangement of electrons within the orbitals of an atom is known as the electron configuration. Share & Embed "electron configuration notes" Please copy and paste this embed script to where you want to embed. 11 Electron Configurations Noble Gas Electron Configuration 1s 2p Ne (Z=10). Electron configurations are used to indicate the arrangement of electrons around the nucleus of an atom in its ground state. -2 main parts of an atom: Nucleus-99. -1 (negative) 1/1840. (most stable) energy level is the one closest to the nucleus. ) Number of Element electrons Aluminum Silicon Phosphorus. Note that some of these apply to only the current user, while others persist across the entire system. You can find the notes below in the attached PowerPoint. Revision notes on the structure of the periodic table chemistry, groups and periods, metals and non-metals, physical properties of the elements of the periodic table, chemical reactions of the elements of the periodic table, help when revising for AQA GCSE chemistry, Edexcel GCSE chemistry, OCR GCSE gateway science chemistry, OCR 21st century science chemistry GCSE 9-1 chemistry examinations. The electron configuration shows that the sorbitals are full, and that added electrons would go to the p orbitals, which are effectively shielded by the s orbitals, lowering the effective nuclear charge felt by added electrons. instead of giving the 4 quantum numbers for every electron. Going back to the above example, Lithium is 1s22s1(1s has 2 electrons, 2s has 1 electron). Electron-configuration notation eliminates the lines and arrows; instead the number of electrons in the sublevel is shown by adding a superscript to the sublevel designation Ex. First look at energy levels, also called the principal quantum number 1. , Group 5A: ns2np3 • Orbital Filling Order & Periodic Table The periodic table is our best guide to filling orbitals and writing electron configurations! 1A (1) 8A (18) 1 H. notebook 1 October 10, 2019 Introduction to Electron Configurations Nucleus Nucleus. Electron Configuration Notes The electron configuration of an atom is the representation of the arrangement of electrons that are distributed among the orbital shells and subshells. Orbital (m. The electronic configurations of atoms help explain the properties of elements and the structure of the periodic table. Electron configurations, orbital notations, electron dot diagrams. Want that in English? It is where you are most likely to find electrons around the nucleus of an atom. If your periodic table doesn’t agree with this, your answers for elements near the f-orbitals may be slightly different. So: We can write the abbreviated electron configuration for Mg as : [ ] 3s2. English: An SVG periodic table of the elements, which includes name, atomic mass, electron configuration, first ionization energy, and electronegativity. # 6) Abbreviated Electron Configurations (Noble Gas Configuration) The electron configuration for Ne: For Mg: 1s22s22p6 1s22s22p63s2. In general successive electron affinity increase in magnitude EA 1 research and engage students through an intuitive, game-like environment where students learn through exploration and discovery. This shows that _____. The electron configuration of scandium is 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 1. Give the full electron configurations (NOT the Noble Gas) for the following atoms/ions. Shells help in understanding the distance of electrons from the nucleus. 3d Electron Configurations and the Periodic Table Section Summary Assignment The electron configuration of an element shows how electrons are distributed in orbitals— which ones are filled and which ones remain vacant. 9 Electron Configuration Notes I. Write these abbreviated electron configurations zCl zAr zBa zNd zHe. Charges of Atoms You can see that each part of the atom is labeled with a "+", "-", or a "0. The spectroscopic methoduses superscripts to show the number of electrons in a subshell (specific orbitals are not shown). On the same way, the electron configuration of zinc after losing two electrons is [Ar]3d 10. I checked online how to do the periodic table configurations and here is a great video. Three rules are used to build the electron configuration: Aufbau principle Pauli Exclusion Principle Hund’s Rule Aufbau Principle Electrons occupy orbitals of lower energy first. Orbital Box Diagrams:. 4; Valence electrons: 4; Note: The fullstop is not a decimal point. We might be able to use that argument to explain the trend within a group, but when we look at the atomic radius trend going across a period the radius decreases. Our table (below) is arranged by ENERGY, but the pattern is not immediately obvious. Other Results for Answer Key Electron Configuration Practice Worksheet: Electron Configuration Worksheet 2 Answer Key - … When patients acquire poor assistance from their doctor’s answering support, it reflects poorly around the practice. The second point can still be earned even if the first point is not IF the electron configuration is incorrect, but the answer for the second part is consistent with the electron configuration given in the first part. Notice the first rule is the Aufbau rule, which simply says that the electrons go into low energy orbitals first. Frequency- Number of waves that passes a point in a second. If your periodic table doesn’t agree with this, your answers for elements near the f-orbitals may be slightly different. energy level. Write the configuration and focus on the outer most electron. principal energy level of an atom. Energy Level - Principal Quantum Number (n) b. Atoms whose outer electrons have l=0,1,2,3,4 are referred to as S, P, D, F, G terms, respectively ( Note that an electron with l=0 is called an s electron; lower case terms refer to individual electrons. Play Electron Configuration Battleship in class to practice identifying location of electrons. The configurations that can be handled by Ampere's law are: 1. An electron configuration is made up of numbers and letters. Write the electron configuration of a divalent cobalt cation (Co2+) in long and in short notation. Chapter 8: Electron Configuration and Chemical Periodicity - Chemistry 163 with Kirkpatrick at Saint Louis University - StudyBlue. Now, to assign electrons to shells and subshells we apply the 3 Electron Configuration rules given at the beginning of this lesson. Distribute them to all of your students, use them for differentiation, or use them to meet the requirements of IEP and 504 plans! *PowerPoint sold separately. The notation describes the energy levels, orbitals and the number of electrons in each. The atomic number is also called the proton number. • An element’s valence electrons determine the chemical properties of the element. Periodic Properties and Periodicity Class Notes History - Periodic Table Periodic Properties Review of electron configuration & quantum numbers I. Therefore strontium’s electron configuration can be abbreviated as [Kr]5s2. , H 1s 1) Another way to indicate the placement of electrons is an orbital diagram , in which each orbital is represented by a square (or circle), and the electrons as arrows. Notice the first rule is the Aufbau rule, which simply says that the electrons go into low energy orbitals first. Chemistry Notes Electron Configurations. This is 1s1. The Electron Structure of the Atom The quantum model emphasizes the wave nature of electrons. Valence Electrons Be 1s2 2s2 2s2 2 Mg 1s2 2s2 2p6 3s2 3s2 2 Ca [Ar] 4s2 4s2 2 Be, Mg, and Ca are all in group 2 (or 2A). Atoms of most nonmetallic elements achieve noble-gas electron configurations by gaining electrons to become , or negatively charged ions. When it is full, then add to the “f”orbital. phosphorus. ***Note the location of the electron subshells on the periodic table. 2 Electron Arrangement in. The principal quantum number (symbolized n) is a whole number, 1 or greater, that identifies the main energy shell of the orbital, with 1 being closest to the nucleus and each subsequent level farther from the nucleus. The 11 protons that establish the character of sodium still remain within its nucleus. --Atoms are the basic building blocks of matter that make up everyday objects. 2 will first fill up the 1st shell in subshell 1s. Quantum Numbers: The address of an electron to indicate the probable location of the electron within the atom. Electron orbitals and configuration notes Lesson 1(Monday 2nd September): Orbitals Lesson 2(Wednesday 4th September): Electron configurations Unit 2 worksheet 1: Electron configurations and worksheet 1 answers Homework: p. However, we do find exceptions to the order of filling of orbitals that are shown in Figure 3 or Figure 4. Therefore, the electron configuration of sulfur can be written as 1s 2 2s 2 2p 2 3s 2 3p 4. Aufbau Principle. Play Electron Configuration Battleship in class to practice identifying location of electrons. The subshells have a distinct shape and configuration, in which the electrons move freely. ( Note - This post was originally posted. For more see the Periodic Table and Electron Structure notes below. An electron configuration is a description of the relative locations of electrons in an atom or ion. Writing Atomic Electron Configurations. Share & Embed "electron configuration notes" Please copy and paste this embed script to where you want to embed. Electron Configuration and The Periodic Table. Day 4 - Shortcuts for Electron Configurations. The element misses out on the octet configuration by one electron. Lithium Fluorine Carbon Argon Sulfur Nickel Rubidium Xeon 2. Guided Notes: Electron Configuration Page Number: Bell Ringer. And a system of organization was needed. Now, to assign electrons to shells and subshells we apply the 3 Electron Configuration rules given at the beginning of this lesson. So Mg2+ means we have to remove its two valence electrons, meaning the two valence electrons in the 3s orbital. Valence electron is the number of electrons in the outermost shell. g electronic configuration of carbon is 2. Carbon - 6 protons, 6 electrons C - 1s22s22p2 Electron-configuration:. Example: Electron Configuration for Magnesium Mg = 1s2 2s2 2p6 3s2 Write the complete electron configuration for each of the following elements. Example: The orbital diagram for a ground-state carbon atom ( atomic number =6), Electron configuration notation fora ground-state carbon atom 5. Now see the elements of group 15. Match the following elements with their corresponding electron configurations 2. iOS Notes Apple requires privacy descriptions to be specified in Info. Electron Configurations - Solutions Note: The electron configurations in this worksheet assume that lanthanum (La) is the first element in the 4f block and that actinium (Ac) is the first element in the 5f block. Each orbital can have two electron. 1s22s22p63s23p6. Electron configurations, orbital notations, electron dot diagrams. Ground State = _____ possible energy state. HESI CHEMISTRY V1/V2 If a Hydrogen is in a compound what would its oxidation number be? 1 What is the oxidation number of any simple ion? 1 or -1 depending on the charge of the ion How many kilograms are in a pound? 0. The probability of finding an electron at the nucleus is 0 (you will never find an electron in the nucleus). Electron Configurations The quantum mechanical model of the atom predicts energy levels for electrons; it is Write the electron configuration for the following: Fluorine: 1s22s22p5 Phosphorus:. Remember that the most stable configuration is that were the last shell is full, i. In this inaugural episode of Crash Course Chemistry, we start out with one of the biggest ideas in chemistry ever - stuff is made from atoms. text explanation. Orbital diagrams or 2. electron and the students send representatives to represent the element. Other Results for Answer Key Electron Configuration Practice Worksheet: Electron Configuration Worksheet 2 Answer Key - … When patients acquire poor assistance from their doctor’s answering support, it reflects poorly around the practice. Electron configuration from orbital diagram Determine the electron configuration using the orbital diagrams #1: _____ #2:.
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