Question

Lithium has the same radius that of magnesium.

(a) true

(b) false

The question was posed to me during an online interview.

Origin of the question is s-Block Elements topic in section s-Block Elements of Chemistry – Class 11

Answer 1

The correct choice is (b) false

The explanation is: The atomic radius of Lithium is 1.31Ao while that of magnesium is 1.34Ao, though Lithium and magnesium do not have the same radius, they have a similar radius which is a reason for their diagonal relationship.