Chapter 11, Problem 29PE

(a)

Interpretation Introduction

Interpretation:

The Lewis structure of $\text{Na}$ has to be given.

Concept Introduction:

Lewis structure:

The representation of valence shell electrons around the atom is known as Lewis structure or Lewis dot structure.  Electrons are represented as a dot in Lewis structures, a single dot represents unpaired electron and paired of dots represents paired electrons.

(b)

Interpretation Introduction

Interpretation:

The Lewis structure of ${\text{Br}}^{\text{-}}$ ion has to be given.

Concept Introduction:

Refer part (a).

(c)

Interpretation Introduction

Interpretation:

The Lewis structure of ${\text{O}}^{\text{2-}}$ has to be given.

Concept Introduction:

Refer part (a).