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Bond enthalpy of fluorine is lower than that of chlorine, why?

Bond enthalpy of fluorine is lower than that of chlorine, why?

Grade:upto college level

1 Answers

Suraj Prasad IIT Patna
askIITians Faculty 286 Points
9 years ago
well it appears to be , under experimental microscopes, that the bond energy for fluorine is less than Chlorine because the F-F bonds have electrons repulsions that appear to be causing this misleading fact. There are exceptions to every model.

F-F bond is short as Fluorine atoms are extremely small. Thus it strengthens the repulsion between lone pair and weakens the bond.

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