Chapter 8, Problem 8.57QP

Interpretation Introduction

Interpretation: Ionization energy in $\text{kJ/mol}$ of the $H{e}^{+}$ ion has to be calculated.

Concept Introduction:

The ionization energy is the minimum energy required to remove the electron from an isolated atom which is in the gaseous state results to give gaseous ion with one positive charge.

The energies of the electron in hydrogen like ion can be calculated by,

$\begin{array}{c}{E}_n=-\left(2.18\times {10}^{-18}J\right)Z^2\left(\frac{1}{n^2}\right)\\ where,\\ \\ n=\text{Principal quantum number}\\ \\ \text{Z}\text{=}\text{Atomic number of the element}\end{array}$