Chapter 8, Problem 97AP

Interpretation Introduction

Interpretation:

The reason for the fact that compounds such as ${\text{CF}}_2$, ${\text{LiO}}_2$, CsCl₂, and ${\text{PI}}_5$ cannot be prepared under atmospheric conditions isto be explained.

Concept introduction:

The octet rule states that every element should have eight electrons in its valence shell in order to attain a noble gas configuration.

Valence electrons are those electrons thatoccupy the last shell of an element.

Lewis dot symbols contain dots, which give information about valence electrons.

Lewis structures show bonds as lines and lone pairs as dots.