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Entry Task: October 19 th Friday

Entry Task: October 19 th Friday. QUESTION: Write the electron configuration to Titanium TURN IN ENTRY TASK SHEET. Agenda:. Collect Group Activity on E.config Discuss the Configuration ws Self-Check electron configuration practice HW: Electron Configuration Review ws.

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Entry Task: October 19 th Friday

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  1. Entry Task: October 19th Friday • QUESTION: • Write the electron configuration to Titanium • TURN IN ENTRY TASK SHEET

  2. Agenda: • Collect Group Activity on E.config • Discuss the Configuration ws • Self-Check electron configuration practice • HW: Electron Configuration Review ws

  3. Configuration Practice ws

  4. In the space below, write the STANDARD electron configurations of the following elements: • 1) sodium • 2) iron • 3) bromine • 4) barium • 5) neptunium 1s22s22p63s1 1s22s22p63s23p64s23d6 1s22s22p63s23p64s23d104p5 1s22s22p63s23p64s23d104p65s24d105p66s2 1s22s22p63s23p64s23d104p65s24d105p66s24f145d106p67s25f5

  5. In the space below, write the SHORT HAND electron configurations of the following elements: 6) cobalt 7) silver 8) tellurium 9) radium 10) lawrencium [Ar]4s23d7 [Kr]5s14d10 [Kr]5s24d105p4 [Rn]7s2 [Rn]7s25f146d1

  6. Determine what elements are denoted by the following electron configurations: • 1s22s22p63s23p4 • 1s22s22p63s23p64s23d104p65s1 • [Kr] 5s24d105p3 • [Xe] 6s24f145d6 • [Rn] 7s25f11 Sulfur Rubidium Antimony Osmium Einsteinium

  7. Determine which of the following electron configurations are not valid: • 1s22s22p63s23p64s24d104p5 • 1s22s22p63s33d5 • [Ra] 7s25f8 • [Kr] 5s24d105p5 • [Xe] 3d10 not4d10 3s2not3p5 • [Rn] 7s25f8 Nothing’s wrong Can’t start with JUST short hand

  8. 1. What generaloverall information do you get from the four quantum numbers? 2. What specific information do you get from the primary quantum number? 3. What specific information do you get from the secondary (second) quantum number? The number of electrons (ID of element), the shape of the orbital and its energy level. Primary is the energy level. It’s the shape (sub orbit)

  9. 4. Why can there only be two electrons in any one orbital? 5. Arrange the following in order of increasing energy. 1s 2s 3s 4s 2p 3p 4p 3d They have opposite spins to “balance out” 1s 2s 2p 3s 3p 4s 3d 4p

  10. 1s22s22p63s2 12 15 1s22s22p63s23p3 23 1s22s22p63s23p64s23d3 1s22s22p63s23p64s23d104p1 32

  11. 20 [Ar]4s2 82 [Xe]6s25d106p2 [He]2s22p5 9 [Rn]7s25f4 92

  12. Part B –Which of the following “rules” is being violated in each electron configuration below? Explain your answer for each. Hund’s Rule, Pauli Exclusion Principle, Aufbau Principle Hunds Rule- you fill up then double up Aufbau Rule- you fill the lower level first then the upper level Pauli Exclusion- need opposite spins Aufbau Rule- Missing 4s

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