Question

If true enter 1, enter 0. On Mulliken scale, the average of ionization potential and electron affinity is known as electronegativity.

Answer 1

On Mulliken scale, the average of ionization potential and electron affinity is known as electronegativity.
Electronegativity $=\frac{\text{Ionization potential}+\text{Electron affinity}}{2}$.
On Pauling scale, the formula changes to
Electronegativity $=\frac{\text{Ionization potential}+\text{Electron affinity}}{5.6}$. This formula is applicable when the values of the ionization energy and electron affinity are taken into eV.
However, when the values of ionization potential and electron affinity are taken in kcal/mol, then the formula becomes
Electronegativity $=\frac{\text{Ionization potential}+\text{Electron affinity}}{2\times 62.5}$.