Chapter 5.11, Problem 5.13PSP

Interpretation Introduction

Interpretation:

The given atoms sodium, fluorine, nitrogen, and phosphorous has to be arranged in decreasing order of first ionization energy using a periodic table.

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,

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