Chapter 1, Problem 1.67AP

Interpretation Introduction

Interpretation:

The geometry of silane has to be drawn.

Concept introduction:

According to VSPER theory,

1. (1) Regions of electron density around the central atom are four, the geometry of the molecule may be tetrahedral and the bond angle is $\text{109}{\text{.5}}^{\text{o}}$.
2. (2) Regions of electron density around the central atom is three, the geometry of the molecule may be trigonal planar and the bond angle is ${\text{120}}^{\text{o}}$.
3. (3) Regions of electron density around the central atom are two, the geometry of the molecule may be linear and the bond angle is ${\text{180}}^{\text{o}}$.