Question

Write the electronic configuration of Zn²⁺ ion. (Atomic number of zinc is 30).

Answer 1

Atomic number of Zinc (Zn) = 30

So, the electronic configuration of neutral Zn atom is:

Zn: 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²

Electrons are removed first from the outermost shell (i.e., 4s orbital)

Zn²⁺: 1s²2s²2p⁶3s²3p⁶3d¹⁰

[Ar]3d¹⁰