1. VSEPR Theory Objectives:
1. Identify the electron pair geometry and molecular geometry for covalently bonded molecules.
2. Determine the bond angles between atoms in a molecule.

3. Review:
Draw any resonance structures for NO2-1 and use formal charges to evaluate the validity of each. What is the VSEPR geometry of the ion?
Does the geometry change with different resonance structures?

4. Yesterday’s VSEPR Shapes:
2 total domains
____ bonding domains
____ lone pair domains
3D Drawing:
Molecular Geometry:

5. Yesterday’s VSEPR Shapes:
3 total domains
____ bonding domains
____ lone pair domains
3D Drawing:
Molecular Geometry:
2 ways to have 3 domains!

6. Yesterday’s VSEPR Shapes:
4 total domains
____ bonding domains
____ lone pair domains
3D Drawing:
Molecular Geometry:
3 ways to have 4 domains!

7. New VSEPR Shapes: 5 total domains 3D Drawing: Molecular Geometry:
____ bonding domains
____ lone pair domains
3D Drawing:
Molecular Geometry:
Axial versus Equatorial
4 ways to have 5 domains!

8. New VSEPR Shapes: 6 total domains 3D Drawing: Molecular Geometry:
____ bonding domains
____ lone pair domains
3D Drawing:
Molecular Geometry:
5 ways to have 6 domains!
VSEPR Robot Lady

9. Practice
1. Describe the molecular geometry and bond angles for each species shown below.
CO2 ClF2+1 BrCl2-1
  PCl3 ICl3 SeCl4
XeCl2F2