Chapter 8, Problem 70QP

An atom of the following molecules does not obey the octet rule. Decide which atom violet the rule and explain the nature of the violation.

$\begin{array}{l}\text{(a)}{\text{NO}}_{\text{2}}\\ \text{(b)}{\text{XeF}}_{\text{2}}\\ \text{(c)}{\text{BeCl}}_{\text{2}}\\ \text{(d)}{\text{ICl}}_{\text{3}}\end{array}$