Name: __________________________________
Period: _________
Lewis Dots – Ionic Compounds
Sodium Chloride

NaCl
Magnesium Oxide 
MgO
Calcium Chloride 
CaCl2
Use the steps above to show Lewis dots and resulting ionic charge, then record chemical formula
for each compound
Magnesium Fluoride
Sodium Oxide
Potassium Oxide
Aluminum Chloride
Iron (II) Sulfide
Aluminum Oxide
Lithium Hydride
Copper (I) Oxide
Name: __________________________________
Period: _________
Lewis Dots – Covalent Compounds
Pre-AP and AP Chemistry Students: After completing diagram, count the Sigma and Pi bonds.
F2
S2
H2O
CO2
Br2
CH4
O2
C2H4
Name: __________________________________
Period: _________
Lewis Dots – Covalent Compounds with More than 2 elements
Pre-AP and AP Chemistry Students: After completing diagram, count the Sigma and Pi bonds.
NI3
Cl2O
H2S
CF2Cl2
C6H12O6 (Challenge)
Name: __________________________________
Period: _________
Pre-AP and AP Chemistry Students: After completing diagram, count the Sigma and Pi bonds.
HCN
C2Cl3F
N2O
C2H4
Name: __________________________________
Period: _________
Name: __________________________________
Period: _________
Polyatomic Ions
Pre-AP and AP Chemistry Students Must complete this section!
Covalent Compounds that form Ionic bonds
1. Draw Lewis Dots for the Covalent compound
2. Determine remaining un-bonded electrons
3. Determine the charge when the compound ionizes [Hint: it gains electron(s)]
4. Write the compound with ionized charge number
5. Predict which group of metals the compound will bond with based on charge
Carbonate – CO3
Nitrite - NO
Nitrate – NO3
Chlorate – ClO3
Sulphate – SO4
Hydroxide - OH