1. Control of Everything

4. Electronic Structure and Periodic Properties
Electron Configuration
Orbital Size
Effective Nuclear Charge

5. Shells, Subshells, Orbitals

6. Organization of the Periodic Table

9. Effective Nuclear Charger
Z* = Zeff = Z – S
Shielding:
electrons with greater n = 0
electrons with same n = 0.35 (except d and f, =1)
electrons with n one lower, = 0.85 (except d and f, =1)
electrons with n two or more lower = 1
P = s s p s2 3p3
shielding = 2x x x = 5.1
Z* = 15 – 10.2 = 4.8

11. Trends in Z*: Do Li through Ne: Do C, Si, Ge:

12. In which region of the periodic table are electrons held most tightly
In which region of the periodic table are electrons held most tightly? Least tightly?

13. Predict trends in atomic size.

14. Predict trends in ionization energy.

15. Predict trends in electron affinity.

16. Predict trends in ionization electronegativity.

17. Periodic Properties
Overall Trend: Electrons held most tightly in upper left of periodic table