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Question

Assign reasons for the following:The negative value of electron gain enthalpy of fluorine is less than that of chlorine.

Prabhat Rajore · Accepted Answer

Fluorene has low electron gain &ndash; enthalpy than chlorine due to its small size and high electron density so that the addition of any extra-electron increases electron-electron repulsion. on other hand chlorine is larger in size and also have d orbital , so it easliy accomodate extra electron.  - Wired Faculty