Question

The electron affinity values for the halogens shown the following trend -

• A. F < Cl > Br > I
• B. F < Cl < Br < I
• C. F > Cl > Br > I
• D. F < Cl > Br < I

Answer 1

The correct option is A

F < Cl > Br > I

In a group of non-metals, electron affinity of $2^{nd}$ element is maximum. Among halogens chlorine has the highest election affinity. Fluorine has small size and due to repulsions between electrons already present and electron being added energy released is less than Cl.