Chapter 5, Problem 105QRT

Interpretation Introduction

Interpretation:

The given trend of first ionization energy has to be briefly rationalized.

Concept Introduction:

Ionization energy: It is the energy needed to remove an electron from that atom in gas phase.  For a gaseous sodium atom, the ionization process is given as,

    ${\text{Na}}_{\text{(g)}}\underset{}{\overset{}{\to }}{\text{Na}}^{\text{+}}{}_{\text{(g)}}\text{+}{\text{e}}^{\text{-}}$