Among halogens, the correct order of amount of energy released in electron gain (electron gain enthalpy) is: (i) f > cl > br > i (ii) f < cl < br < i (iii) f < cl > br > i (iv) f < cl < br < i

The correct answer is f < cl > br > i.

Electron gain enthalpy is defined as the amount of energy released when an electron is added to an isolated gaseous atom. Due to electron-electron repulsion in a small-sized F atom, the electron gain enthalpy of F is less negative than that of CI. As we move down the group, electron gain enthalpy becomes less negative due to increase in atomic size.

Was this answer helpful?


3.5 (11)


Choose An Option That Best Describes Your Problem

Thank you. Your Feedback will Help us Serve you better.

Leave a Comment

Your Mobile number and Email id will not be published.





App Now