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?


0 (0)

Upvote (0)

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Your Mobile number and Email id will not be published. Required fields are marked *




Free Class