Bond enthalpy of fluorine is lower than that of chlorine why? – InterviewSolution

1.	Bond enthalpy of fluorine is lower than that of chlorine why?
Answer» Bond enthalpy of F-F is smaller due to greater repulsive interactions between the lone pair of one F atom with those of other. The repulsive interaction arise due to greater concentration of electron density on each F atom because of its extremely small size.

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