Question

ns^1 and ns^2 are the outer shell configurations of elements in s-block.

(a) True

(b) False

This question was posed to me in a national level competition.

My question is from Electronic Configurations and Types of Elements: s, p, d and f Blocks in division Classification of Elements and Periodicity in Properties of Chemistry – Class 11

Answer 1

The correct choice is (a) True

Easiest explanation: Yes, ns^1 and ns^2 are the outer shell configurations of elements in s-block. The reason behind this is that they are ready to lose 1 electron or 2 electrons depending on the group number and have low ionization enthalpies.