possibly+helpful

Links that might be able to help you out. =] Add 'um as you find 'um ! http://chemistry.boisestate.edu/people/richardbanks/inorganic/bonding%20and%20hybridization/bonding_hybridization.htm

http://www.cem.msu.edu/~reusch/VirtualText/intro3.htm

http://www.chem.ucalgary.ca/courses/350/Carey5th/Ch01/ch1-3-2.html