Question

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

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

Answer 1

The correct option is C $N<O<S<Cl$

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 $N<O<S<Cl$.