VSEPR THEORY

For the rules of VSEPR - predicting shapes of molecular compounds.. please help with question below?

a) predict shape of molecular orbitals around central atom and give the angle/s between orbitals of GeH4, PCl5, SF6 (all numbers are the little numbers on the bottom (not top))

b) predict the shape of the molecular orbitals around the central atom and explore the shape of the actual molecule - give the change in the angle size and reason for itif anyone could please help assist answering this question or any part of it that would be AWESOME


by joeyeehu...

Best Answer - Chosen by Voters
In VSEPR theory, the electron pairs will be placed as far apart as possible to reduce repulsion.

GeH4:
Ge = 4e
4H = 4e
Total = 8e

= 4 electron pairs

The shape is tetrahedral with a bond angle of 109.5 degree

P = 5e
5Cl = 5e
Total = 10e = 5 electron pairs
The shape is trigonal bipyramidal. It has two types of bond angles: 90 and 120 degree

S = 6e
6F = 6e
Total = 12 e = 6 electron pairs
The shape is octahedral with bond angles 90 degree.