Chapter 13, Problem 75E

Interpretation Introduction

Interpretation: The Lewis structure of ${\text{PF}}_{\text{5}}{\text{, SF}}_{\text{4}}{\text{, ClF}}_{\text{3}}{\text{ and Br}}_{\text{3}}{}^{\text{-}}$ species needs to be drawn and how these molecule / ions violet the octet rule and have more than 8 electrons needs to be explained. Also,the element with expanded octet needs to be identified and rationalized.

Concept Introduction:

Lewis dot structure is the representation which shows the bonding between atoms present in a molecule. It shows lone pairs and bond pairs that exist on each bonded atom. Lewis dot structure is also known as Lewis dot formula or electron dot structure.

The sum of valence electrons must be arranged in such a way that all atoms must get octet configuration (8 electrons).