Question

Molecular orbital theory can be applied to heteronuclear diatomic molecules if the atomic numbers of the two atoms in the molecule differ by one or two atomic numbers.

If the given statement is true enter 1, else enter 0.

Answer 1

Molecular orbital theory can be applied to hetero-nuclear diatomic molecules if the atomic numbers of the two atoms in the molecule differ by one or two atomic numbers. For example, MO theory can be applied to $NO$ and $CO$ molecules. When two atoms differ by one or two atomic numbers then the energy levels of these two atoms are identical which allows for significant overlap.