Question

What is the ground-state electron configuration for $\mathrm{Zn}$?

Answer 1

Zinc:

• Zinc is a d-block element having an atomic number $30$.
• The chemical symbol of Zinc is 'Zn'.

Electronic configuration of d-block

• In general, the electronic configuration of these elements is $(\mathrm{n}-1){\mathrm{d}}^{1-10}{\mathrm{ns}}^{1-2}$.
• Here, (n–1) stands for the inner $d$orbitals which may have one to ten electrons, and the outermost $\mathrm{n}s$ orbital may have one or two electrons.

Electronic configuration of Zinc $\left(\mathrm{Zn}\right)$:

• The electronic configuration of Zinc in the ground state is $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^{2}3{\mathrm{p}}^{6}3{\mathrm{d}}^{10}4{\mathrm{s}}^2$.
• It can be represented as: $\left[\mathrm{Ar}\right]3{\mathrm{d}}^{10}4{\mathrm{s}}^2$