1. Why do atoms stick together?
Chemical Bonding
Why do atoms stick together?
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 2 3 4 5 6 7 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 7 8 10 12 13 14 15

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

16. Examples: Exceptions to the Octet Rule
ClF5

17. Examples: Reading Organic Structures
CH3CH3
CH3CN
CHCCHCH2

18. Draw the Lewis structure for SO3. How many lone pairs does it have?1 2 3 4

19. Draw the Lewis structure for NO2-. How many lone pairs does it have?1 2 3 4