1. How to Draw Lewis Structures
1. Count all of the valence electrons.
2. Connect the atoms with single bonds.
3. Distribute the remaining electrons to satisfy the octet rule (start on outside)

2. Cl2

3. C2H6

4. How to Draw Lewis Structures
1. Count all of the valence electrons.
2. Connect the atoms with single bonds.
a. Choose central atom
i. lesser in number
ii. most metallic
iii. carbon preferentially central
b. Use symmetry [clock positions; 3, 6, 9, and 12]
c. Carbon rarely has lone pairs
3. Distribute the remaining electrons to satisfy the octet rule (start on outside)

5. ethane
C2H6

6. methyl trichlorosilane
H3CSiCl3

7. hypochlorite
ClO-

8. How to Draw Lewis Structures
(Of Note: Lewis structures for ions are housed in brackets with charge on the ion shown outside the brackets as a superscript)
1. Count all of the valence electrons.
2. Connect the atoms with single bonds.
a. Choose central atom
i. lesser in number
ii. most metallic
iii. carbon preferentially central
b. Use symmetry [clock positions; 3, 6, 9, and 12]
c. Carbon rarely has lone pairs
3. Distribute the remaining electrons to satisfy the octet rule (start on outside)

9. H2CO

10. How to Draw Lewis Structures
1. Count all of the valence electrons.
2. Connect the atoms with single bonds.
a. Choose central atom
i. lesser in number
ii. most metallic
iii. carbon preferentially central
b. Use symmetry [clock positions; 3, 6, 9, and 12]
c. Carbon rarely has lone pairs
3. Distribute the remaining electrons to satisfy the octet rule* (start on outside)
* Use multiple bonds if needed

11. formaldehyde
H2CO
methanal

12. nitronium
NO2+

13. sulfur dioxide
SO2

14. acetonitrile
H3C2N

15. acetone
(CH3)2CO
propanone