Question

The correct order of electron affinities of $N,O,S$ and $Cl$ is

• A. N < O < S< Cl
• B. O < N < Cl < S
• C. O = Cl < N = S
• D. O < S < Cl < N

Answer 1

Answer: (A)

Electron affinity is the tendency is attract shared pair of electron towards itself. Its value decreases in a group and increases in a period. The correct order of electron affinities is as follows $N<O<S<Cl$.