JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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If the ionisation potential is IE, electron affinity is EA and electronegativity is X, which of the following relation is correct

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Correct option: A

X = \frac{{IE + EA}}{2}

Option A is correct because Mulliken's electronegativity (X) is defined as the average of the ionization energy (IE) and electron affinity (EA):

X = \frac{{IE + EA}}{2}

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