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NTA Abhyas JEE Main2020ChemistryClassification of Elements and Periodicity in PropertiesPractice

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 :

Options

  1. Aa – b
  2. Bb - a 2
  3. Ca + b
  4. Da + b 2

Correct answer

D. a + b 2

Step-by-step solution

EN = IE + E ⁡ A ⁡ 2 and E ⁡ A ⁡ = - E ⁡ g a

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