Molecular geometry and bonding theories
Molecular Shapes
The VSEPR Model
Molecular Shape and Molecular Polarity
Covalen Bonding & orbital overlap
Hybrid Orbitals
Multiple bonds
Molecular orbitals
Determined by bond angles
AB2 linear (180) 
AB3 trigonal planar (120)
AB4 tetrahedral (109.5)
AB5 trigonal bypiramid al (90/120)
AB6 octahedral (90)
3D lewis structure
electron geometry
molecular geometry
electrons & molecules #
just molecules #
Polar
Nonpolar
pulls in a certain direction
equal pull away from center
valence bond theory
overlapping atoms form covalent bonds
s orbital + p orbital = hybrid orbital
How to predict
- draw lewis structure
determine electron geometry
- number of orbitals = # outer atoms
single -> signma
double -> sigma + pi
triple: sigma + 2pi