Chapter 12, Problem 74E

Interpretation Introduction

Interpretation:

Using VSEPR theory, Electron pair geometry, the molecular shape, and the bond angle for a phosphine molecule, $P{\text{H}}_{\text{3}}$ is to be predicted.

Concept introduction:

VSEPR theory is an important model that is frequently used in chemistry to decide the shape and geometry of the molecules. VSEPR model is the extension of the Lewis model. As the Lewis model is not able to explain the shape of the molecules. In terms of electron density, it is given that both the bonding electrons as well as lone pair of electrons hold the shape of the molecule.