Which of the following elements will gain one electron more readily in comparison to other elements of their group?
(i) S (g)
(ii) Na (g)
(iii) O (g)
(iv) Cl (g)
Which of the following elements will gain one electron more readily in comparison to other elements of their group?
(i) S (g)
(ii) Na (g)
(iii) O (g)
(iv) Cl (g)

Option (i) and (iv) are the answers. Chlorine has the strongest tendency to gain an electron, as well as a high electron gain enthalpy (-ve). Group 16 includes O and S, however S has a higher ability to receive electrons.