what is the electronic configuration for nickel ion

Question

the electronc configuration and the orbital diagram for nickel

Answer 1

Hi Mulolanji!

This is a very good question, and it's complex, because we don't know the ion:

The electronic configuration for Ni (the neutral one):

1s2 2s2 2p6 3s2 3p6 3d8 4s2

This reduces to:

[Ar] 4s2 3d8

The electronic configuration for Ni²⁺ (the first ion):

1s2 2s2 2p6 3s2 3p6 3d8

This reduces to:

[Ar] 3d8

The electronic configuration for Ni³⁺ (the second ion):

1s2 2s2 2p6 3s2 3p6 3d7

This reduces to:

[Ar] 3d7

The orbital diagram for Ni:

↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓↑↓↑↓↑_↑_

1s2 2s2 2p6 2s2 3p6 4s2 3d8

The orbital diagram for Ni²⁺:

↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓↑↓↑↓↑_↑_

1s2 2s2 2p6 2s2 3p6 3d8

The orbital diagram for Ni³⁺:

↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓↑↓↑_↑_↑_

1s2 2s2 2p6 2s2 3p6 3d7