1. Tardigrade
  2. Question
  3. Chemistry
  4. Electron gain enthalpy and ionisation energy of an atom are -a and +b eV respectively. The electronegativity of that atom on Mulliken scale is given by :

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Q. Electron gain enthalpy and ionisation energy of an atom are $-a$ and $+b \,eV$ respectively. The electronegativity of that atom on Mulliken scale is given by :

NTA AbhyasNTA Abhyas 2022

Solution:

The electronegativity of that atom on Mulliken scale is given by
$EN=\frac{IE + EA}{2}$ and $EA=-E_{eg}$
Ionisation energy and electron affinity must be in ev/atom.