# How do you find the geometry of #SiH_4# using the VSEPR method?

##### 1 Answer

Dec 30, 2016

There are 4 valence electrons for

#### Explanation:

Given that silicon has 4 valence electrons, and each hydrogen contributes 1 electron, there are 8 valence electrons, and thus there are 4 electron pairs to be distrbuted around the central silicon atom.

And if there are 4 electron pairs, the geometry is based on a tetrahedron, i.e. each

And thus silane,

Note that you probably know the geometry of methane,