Chapter 15, Problem 101A

Interpretation Introduction

Interpretation: To determine the electronic configuration of oxide ions.

Concept Introduction: The electronic configuration can be defined as the process in which electrons are distributed into the shell of the atom. Each shell has its own capacity to contain electrons.

Answer to Problem 101A

The electronic configuration of oxide ion will be ${\text{[He]2s}}^{\text{2}}{\text{2p}}^{\text{6}}$

Explanation of Solution

The atomic number of oxygen = 8

It has 2 negative charges, hence, the new atomic number = 10

The electronic configuration ${\text{O}}^{\text{2-}}$ = ${\text{[He]2s}}^{\text{2}}{\text{2p}}^{\text{6}}$ or ${\text{1s}}^{\text{2}}{\text{2s}}^{\text{2}}{\text{2p}}^{\text{6}}$