Chapter 9, Problem 28QP

Interpretation Introduction

Interpretation:

The bonding in ${\text{AsH}}_{\text{3}}$ is to be described using hybridization.

Concept introduction: Hybridization is based on the formation of hybrid orbitals by mixing of atomic orbitals.

To explain bonding by hybrid orbitals, first draw the Lewis structure.

Find the number of electron domains on the central atom.

Draw the orbital diagram of the central atom in the ground state.

Promote the electrons to the higher orbitals available, to get the maximum number of unpaired electrons.

Combine the atomic orbitals to get the required number of hybrid orbitals.

Fill electrons in hybrid orbitals by placing one electron in each orbital before pairing the electrons.