A very simple introduction to hybridization that complements the VSEPR model is given here. You should be aware that it is possible to combine atomic orbitals in many different ways to give hybrid orbitals that fit experimental evidence of molecular structure.

Hybridization refers to combining atomic orbitals in a single atom mathematically to generate an equivalent set of orbitals, called hybrid orbitals. In this database, central atoms in molecules are given a hybrid label to designate the geometry of their electron pairs. In order to see the Hybridization labels you must select "Hybridization" in the Optional Views menu.

The common orbital hybridizations and associated electron pair geometries are listed in the graphic.