Among halogens, the correct order of amount of energy released in electron gain (electron gain enthalpy) is :

Among halogens, the correct order of amount of energy released in elec

1.	Among halogens, the correct order of amount of energy released in electron gain (electron gain enthalpy) is :
Answer» `F gt Ci gt Br gt I` `F LT CI lt Br lt I` `F lt CI gt Br gt I` `F lt CI lt Br lt I` SOLUTION :Moving in table Cl to I, electron gain enthalpy becomes less negative due to the corresponding increase in the atomic size. (Electron gain ecthalphy = ENERGY RELEASED when electron is GAINED). Electron enthalpy of F is less negative as of CI, due to its small size. Order for electron gain enthalpy is as follows `F lt CI gt Br gt I`