Electron affinity of oxygen is less negative than sulphur. Justify this statement.

Explanation

When an electron is added to oxygen, the added electron goes to the .L. shell (n=2). As the .L. shell possess smaller region of space, the added electron feels significant repulsion from the other electrons present in this level.
E.A of O=-141 KJ `mol e^(-1)`
E.A of S=-200 KJ `mol e^(-1)`.