Highest electron affinity is shown by

Options

(a) O⁻
(b) F⁻
(c) Cl₂
(d) F₂

Correct Answer:

O⁻

Explanation:

Molecules of F₂, Cl₂ and anion F⁻, all have stable inert has configuration. Thus, their elctrn affinity is almost zero. Hence, among the given, O⁻ has the highest elctrn affinity.