Question

The electronic configuration of an element with an atomic number 12 is ______.

Answer 1

Electronic configuration

• The distribution of electrons into orbitals of an atom is called its electronic configuration.

Electronic configuration of the element with an atomic number 12:

• The given atomic number is $12$ so the element is Magnesium $\left(\mathrm{Mg}\right)$.
• The electronic configuration of $\mathrm{Mg}$ is $1s^{2}2s^{2}2p^{6}3s^2$.

Hence, the electronic configuration of an element with an atomic number $12$ is $\mathbf{1}{\mathbf{s}}^{\mathbf{2}}\mathbf{2}{\mathbf{s}}^{\mathbf{2}}\mathbf{2}{\mathbf{p}}^{\mathbf{6}}\mathbf{3}{\mathbf{s}}^{\mathbf{2}}$.