Question

Why do Sc³⁺ ions not show paramagnetic behaviour?

Answer 1

1. Sc³⁺ ion has electronic configuration 3d⁰, meaning it has no electrons in the d-orbitals.
2. Paramagnetism arises due to the presence of unpaired electrons.
3. Since Sc³⁺ has zero unpaired electrons, it shows no paramagnetism.

Therefore, Sc³⁺ is diamagnetic, having a magnetic moment of zero.