Question

Write down the electronic configuration of the following ions: V5+, Cr3+, Mn2+, Fe3+, Cu2+, Sc3+ and Ti4+

Answer 1

The electronic configurations of the given ions are as follows:

V⁵⁺ = 1s², 2s² 2p⁶, 3s² 3p⁶

Cr³⁺ = 1s², 2s² 2p⁶, 3s² 3p⁶ 3d³

Mn²⁺ = 1s², 2s² 2p⁶, 3s² 3p⁶ 3d⁵

Fe³⁺ = 1s², 2s² 2p⁶, 3s² 3p⁶ 3d⁵

Cu²⁺ = 1s², 2s² 2p⁶, 3s² 3p⁶ 3d⁹

Sc³⁺ = 1s², 2s² 2p⁶, 3s² 3p⁶

Ti⁴⁺ = 1s², 2s² 2p⁶, 3s² 3p⁶

- All the above given electronic configurations are in accordance with Afbau principle.