1. IONIC Lewis Dot Diagrams
Chemical BONDING
IONIC Lewis Dot Diagrams

2. [Na]+1 [ Cl ]-1 Sodium Chloride
This is the finished Lewis Dot Structure
[Na]+1 [ Cl ]-1
How did we get here?

3. Practice Dot diagrams & formulas
Lithium fluoride
Magnesium oxide
Calcium chloride
Potassium hydride

4. Drawing molecules using Lewis Dot Structures
Remember: atoms are sharing e- to complete their outer shell!

5. Simplest Covalent bond is in H2

6. F2 Valence orbital notation for each atom?
Lewis Dot diagram for molecule?

7. Multiple Covalent Bonds
Valence orbital notation for each atom?
The overlap results in a DOUBLE BOND
Lewis Dot Structure?

8. Multiple Covalent Bonds
Valence orbital notation for each atom?
The overlap results in a TRIPLE BOND
Lewis Dot Structure?

10. Use Pencil
Step 1
count total valence e- involved; this is your target number. No more! No less!
Step 2
connect the atoms with single bonds **you may need to reconfigure the dots later… ahhhhh pencil
Step 3
complete valence shells to make the atoms stable.

11. Let’s Practice! HCl CH4 NH3
make sure all the atoms are complete and stable. Just use dots…no x
HCl
CH4
NH3

12. Draw the Lewis Dot Diagram for polyatomic ions
Same thing!
Just add or subtract electrons based on the charge, enclose in a giant bracket and write its charge.
REMEMBER!
A negative charge means it has extra electrons!
Phosphate

13. The End