Chapter 22, Problem 21E

Interpretation Introduction

Interpretation: A reason for placing the hydrogen along with the group $\text{1A}$ elements of the periodic table is to be given.

Concept introduction: Hydrogen is not placed in any of the group since it has both the capacity to lose one electron and gain one electron. But the valence electronic configuration of hydrogen is $1{\text{s}}^1$ .

To determine: The reason for placing hydrogen along with the group $\text{1A}$ elements of the periodic table.