Step 1: Find valence e- for all atoms. Add them together.

C:4x2=8

H:1x6=6

O:6

Total=20

Step2: Find octet e- for each atom and add them together.

C:8x2=16

H:2x6=12

O:8

Total=36

Step3: Subtract step 1 total from step 2. Gives you bonding e-.

36-20=16e-

Step 4: Find number of bonds by diving the number in step 3 by 2(because each bond is made of 2 e-)

16e-/2= 8 bond pairs

Step 5: Find the number of nonbonding (lone pairs) e-. Subtract step 3 number from step 1.

20-16= 4e-=2 lone pairs

Use information from step 4 and 5 to draw the lewis structure.

## Lewis dot structure of C_{2}H_{5}OH

Alternatively a dot method can be used to draw the lewis structure.

Calculate the total valence electrons in the_{} molecule.

C:4x2=8

H:1x6=6

O:6

Total=20 i.e . 10 pairs