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Electron Configuration of H, F, Fe, and Au

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  1. Chapter 5 Electron Configuration

  2. Electron Configuration 4d7 ← number of electrons Energy level → ↑ sublevel 7 electrons are in the d sublevel of the 4th energy level

  3. What is the electron configuration of H? (Z = 1) 1s1

  4. What is the electron configuration of F? (Z = 9) 1s2 1s22s2 1s22s22p5

  5. What is the electron configuration of Fe? (Z = 26) 1s22s22p63s2 3p64s23d6

  6. What is the electron configuration of Au? (Z = 79)

  7. What is the electron configuration of Au? (Z = 79)

  8. Diagonal Rule “Arrow Diagram” 1 2 3 4 5 6 7 s • Steps: • Write the energy levels 1 through 7. • Write the sublevels in s, p, d, f order. • Draw diagonal lines from the top right to the bottom left. • To get the correct order,follow the arrows! s 2p s 3p 3d s 4p 4d 4f s 5p 5d 5f 7p is as far as you will go. s 6p 6d 6f s 7p 7d 7f

  9. What is the electron configuration of Gold (Au)? Z = 79 • 1s22s22p63s23p64s23d104p65s24d10 5p66s24f145d9

  10. Homework • Chapter 5 Worksheet – Electron Configuration.

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