Chapter 21.4, Problem 3RC

Interpretation Introduction

Interpretation: the constituents present in compound $N{a}_2{O}_2$ are needed to be identified from the given options.

Concept introduction:

Ionic compounds are formed by electrostatic attraction between ions such as monoatomic ions and polyatomic ions; in which positively charged ions is known as cations and negatively charged ions are known as anions.

The sum of charges of ions present in an ionic compound is equals to net charge of the compound. The net charge of the ionic compound must be zero, because it should be balanced.

The charge of $N{a}^{+}$ is $\text{+1}$.

The charge of $O_2{}^{2-}$ is $\text{-2}$.