2. Between species from same parent species Between species from different parent species

7. Formation of Ions Repeat but with electronic configurations Na + + Na + Cl Cl - Cl - Na + Cl Na e - (1s 2 2s 2 2p 6 3s 2 3p 5 ) (1s 2 2s 2 2p 6 ) (1s 2 2s 2 2p 6 3s 1 ) (1s 2 2s 2 2p 6 3s 2 3p 6 )

8. Formation of Ions – another example Ca + + Ca 2+ O O 2- O 2- Ca 2+ O Ca 2 e - (1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 ) (1s 2 2s 2 2p 6 ) (1s 2 2s 2 2p 4 ) (1s 2 2s 2 2p 6 3s 2 3p 6 )

10. Crystals of Cesium Halides  CsF CsCl  CsI   CsBr

11. Crystals of copper salts

19. Table 4.11 Preferred Number of Bonds

21. LINEAR TETRAHEDRAL PLANAR ARRANGEMENT Two double or one triple bond One double bond All single bonds

22. Example 1: Correlation between Lewis structure, arrangement and molecular geometry

23. Example 2: Correlation between Lewis structure, arrangement and molecular geometry

24. Example 3: Correlation between Lewis structure, arrangement and molecular geometry

26. Figure 4.5

28. Table 4.14

29. Table 4.15

40. LINEAR TETRAHEDRAL PLANAR ARRANGEMENT Two double or one triple bond One double bond All single bonds 180 120 109.5 BOND ANGLE SUBCLASS THE ULTIMATE USEFUL SUMMARY SLIDE One of the S-O bonds is double