Question

Why is rhe electron affinity of cl is greater than that of the fluorine?

Answer 1

Yes it's true that electron affinity of fluorine is less than that of chlorine. This is because the size of fluorine atom is very small as compared to chlorine atom and due to its small size there are strong inner repulsions among valence electrons and so the outer electron doesnot feel the attraction from the nucleus. So electron affinity of fluorine is less than that of chlorine.