Questions
The electron gain enthalpies of halogen are as given below:
The less negative for F as compared to that of is due to:
detailed solution
Correct option is A
Due to the short size of the F atom, the tight 2p subshell's strong electron-electron repulsions prevent the incoming electron from being taken as readily as it is with Cl (less electron-electron repulsions).
Because of this, chlorine has a greater negative electron gain enthalpy than fluorine.
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