Question

Why electron affinity of oxygen is less than sulphur?

Answer 1

Oxygen being smaller in size than sulfur, has its valence shell electrons placed more closely than sulfur. ... As an external electron is introduced, energy is released (which is called electron affinity) but at the same time, some of the energy is consumed due to the instability caused by electron-electron repulsion

Answer 2

$\huge{\bold{\red{Heya!!!}}}$

$\bold{\blue{Here\:is\:your\: answer\: }}$


Oxygen being smaller in size than sulfur, has its valence shell electronsplaced more closely than sulfur. ... As an external electron is introduced, energy is released (which is calledelectron affinity) but at the same time, some of the energy is consumed due to the instability caused by electron-electron repulsion.