The electron gain enthalpy (in KJ/mol) of fluorine, chlorine, bromine and iodine, respectively are:
Solution
Order of electron gain enthalpy (magnitude) is
Cl > F > Br > I
<br><br><b>Note:</b> Electron gain enthalpy increases with electro negativity but chlorine has higher electron gain enthalpy than
fluorine (exception).
About this question
Subject: Chemistry · Chapter: Periodic Table and Periodicity · Topic: Periodic Trends
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