Electron configurations of ions, Magnetic properties
1. Read chapter 7 (313-318)
2. OWLs due Thursday

Oct 26

It worked!

Z* (Z effective) is an important predictor for periodic trends as you move from left to right across a period.  Think about the different reactitivities of Na and Cl – one has a small Z*, and wants to give away an electron; the other has a large Z*, and wants to gain another electron.