Question

Sc^3+ is a paramagnetic ion.

(a) True

(b) False

I have been asked this question during an interview.

Asked question is from D and F-Block Elements topic in section D and F-Block Elements of Chemistry – Class 12

Answer 1

Correct answer is (b) False

Easy explanation: Scandium (atomic no.21, symbol-Sc) has the following electronic configuration:

[Ar] 3d^14s^2

In its Sc^3+ state, scandium loses the 4s and 3d electrons and is colourless. Hence, Sc^3+ is diamagnetic and not paramagnetic.