Multiple choice

Among the halogens as you go from F to I, the electron affinity

  1. fluctuates

  2. increases

  3. decreases

  4. remains same

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In general, along a group, electron affinity decreases from top to bottom. Hence option 3 is correct. However due to small size of 2porbitals of fluorine, the added electron is repelled and hence electron affinity of fluorine becomes less than that of chlorine So theactual order is Cl > F> Br> I. Hence the option 1 which mentions the word fluctuates looks to be more appropriate