CHEM 201 Lecture Notes - Valence Bond Theory, Vsepr Theory, Electron Shell
Document Summary
Valence shell electron pair repulsion (vsepr) theory (cid:12254) (cid:12254) (cid:12254) (cid:12254) Properties of molecular substances depend on the structure of the molecule. Valence shell electron pair repulsion (vsepr) theory is a simple model that allows us to account for molecular shape. Electron groups are de ned as line pairs, single bonds, double bonds, and triple bonds. Vsepr is based on the idea that electron groups repel one another through coulombic forces. Electron groups around a central or interior atom will be most stable when they are as far apart as possible. Because electrons are negatively charged, they should be most stable when they are separated as much as possible. (cid:12254) The resulting geometric arrangement will allow us to predict the shape and bond angles in the molecule. Each orbital has a maximum of 2 electrons s orbital. Hybrid orbitals - describe the bonding of the combination of atomic orbitals of each atom.
