Question

Of the following elements, which possess the highest
electron affinity?
(1) As (2)
(3)S (4) Se​

Answer 1

Answer:

the answer is:

Chlorine(Cl)

Answer 2

Sulphur

It is because :-

1) It lies in 3rd period while As and Se lies below it.

2) The size of S is smaller than that of As and Se