Question

Write down the electronic configuration of:

i. Cr³⁺

ii. Cu⁺

iii. Co²⁺

iv. Mn²⁺

Answer 1

i. Cr³⁺ = 1s² 2s² 2p⁶ 3s² 3p⁶ 3d³ 

ii. Cu⁺ = 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 

iii. Co²⁺ = 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁷ 

iv. Mn²⁺ = 1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵