why the answer is 2. plz explain
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(4) F------->F-
Requires absorption of energy
As the size of fluorine is small so when an electron is added to complete its octet the incoming electron experiences a repulsion. So to reduce the repulsion the energy is not released but absorbed.
Requires absorption of energy
As the size of fluorine is small so when an electron is added to complete its octet the incoming electron experiences a repulsion. So to reduce the repulsion the energy is not released but absorbed.
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