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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.

A

Atom A

B

Atom B

C

`X_A = X_B`

D

Unpredictable

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The correct Answer is:
A
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