Question

The electronic configurations of four elements are given below. Which element does not belong to the same family as others?

(a) [Xe]4f¹⁴ 5d¹⁰ 6s²

(b) [Kr]4d¹⁰ 5s²

(c) [Ne]3s² 3p⁵

(d) [Ar]3d¹⁰ 4s²

Answer 1

Correct option (c) [Ne]3s² 3p⁵

Explanation :

[Ne]3s² 3p⁵ is the electronic configuration of a p-block element whereas other configurations are those of d-block elements.