1. Chemical Bonding Why do atoms stick together, anyway? Who cares?

2. Types of Bonding Ionic Covalent Metallic Ionic Bonding: Covalent Bonding:

4. Covalent Bonding Uses Valence Electrons

5. Also called Lewis Dot Symbols

6. How many valence electrons does a Si atom have? 1.1 2.2 3.3 4.4 5.5 6.6 7.7 8.8

7. Lewis Electron-Dot Structures: Describing Bonding in p-block compounds

8. Interpreting Lewis Structures

9. Drawing your own Lewis Structures

10. How many total bonding electrons does an acetate ion have? 1. 3.5 1.7 2.8 3.10 4.12 5.13 6.14 7.15

11. Why bother? Lewis Structure Molecular Structure Resonance Number of Bonds Reactivity Spectroscopy Polarity Physical State and Properties Hydrophilicity and phobicity

12. Back to Drawing Lewis Structures I have an idea. Do what I say.

13. Back to Drawing Lewis Structures

14. Examples

15. Examples with multiple bonds N2N2

16. Examples: Exceptions to the Octet Rule ClF 5

17. CH 3 Examples: Reading Organic Structures CH 3 CN CHCCHCH 2

18. Draw the Lewis structure for SO 3. How many lone pairs does it have? 1.1 2.2 3.3 4.4 5.0

19. Draw the Lewis structure for NO 2 -. How many lone pairs does it have? 1.1 2.2 3.3 4.4 5.0