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The ionisation potentials of atoms A and...

The ionisation potentials of atoms `A` and `B` are `400` and `300 kcal mol^(-1)` respectively. The electron gain enthalpy of these atoms are `80.0` and `85.0 kcal mol^(-1)` respectively. Which of the atoms has higher electronegativity.

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The correct Answer is:
`[EN_(1) gt EN_(2)]`
`[E.N. of A = (400)/(80)/(x)`
`E.N. of B = (300 +85)/(X), E.N.` of `A gt B`]
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