1. Molecular Geometry
VSEPR

2. VSEPR Theory
VSEPR theory (Valence Shell Electron-Pair Repulsion) - States that repulsion between the sets of valence electrons surrounding an atom causes these sets to be oriented as far apart as possible. Double and triple bonds are treated as single bondsd

3. Linear
Atoms Bonded to Central Atom= 2 Lone pair of electrons= 0 Bond Angle- 180º Examples BeF2 CO2 HCl

4. Trigonal Planar
Atoms Bonded to Central Atom= 3 Lone pair of electrons= 0 Bond Angle-120º Examples BF3 COCl2

5. Trigonal planar ---Bent
Atoms Bonded to Central Atom= 2 Lone pair of electrons= 1 Bond Angle- Less than 120º Examples SO2 O3

6. Tetrahedral
Atoms Bonded to Central Atom= 4 Lone pair of electrons= 0 Bond Angle= 109.5º Examples CH4 CCl4

7. Tetrahedral- Bent
Atoms Bonded to Central Atom= 2 Lone pair of electrons= 2 Bond Angle- Less than 105º Examples H2O ClO2 OF2

8. Trigonal Pyramidal
Atoms Bonded to Central Atom= 3 Lone pair of electrons= 1 Bond Angel= less than 107.3° Examples; NH3 NF3 PCl3

9. The following are PAP Only

10. Trigonal- Bipyramidal
Atoms Bonded to Central Atom= 5 Lone pair of electrons= 0 Bond Angel= 90º, 120º, 180º Examples: PF5 PCl5

11. Octahedral
Atoms Bonded to Central Atom= 6 Lone pair of electrons= 0 Bond Angel= 90º, 180º Examples; SF6