Chapter 15, Problem 15.30E

Interpretation Introduction

Interpretation:

The reason as to why the heteronuclear diatomic molecules do not use the labels $\text{g}$ and $\text{u}$ on their term symbols is to be stated.

Concept introduction:

The term symbols for diatomic molecules are similar to that of atoms and are represented as ${}^{2S+1}{\Lambda }_{\Omega }$. It is determined by the total orbital angular momentum of electrons about the internuclear axis.