Chapter 5, Problem 117QRT

Interpretation Introduction

Interpretation:

The relationship between ionization energy and characteristics of elements hydrogen, helium, and lithium has to be explained.

Concept Introduction:

Ionization energy:  It is the energy required to remove an electron from an atom in gas phase.  The ionization process of sodium atom in gaseous sate is given by

    ${\text{Na}}_{\text{(g)}}\underset{}{\to }{\text{Na}}^{\text{+}}{}_{\text{(g)}}\text{+}{\text{e}}^{\text{-}}\text{ΔE}\text{=}\text{ionization}\text{energy}$