Question

The electronic configuration of ${\mathrm{U}}^{3+}$ ion is:

Answer 1

Electronic configuration

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

Electronic configuration of ${\mathrm{U}}^{3+}$

• The symbol for Uranium is $\mathrm{U}$ and its atomic number is $92$.
• The electronic configuration of $\mathrm{U}$ is $\left[\mathrm{Rn}\right]5{\mathrm{f}}^{3}6{\mathrm{d}}^{1}7{\mathrm{s}}^2$.
• It is a f-block element and belongs to actinide series.
• Uranium loses 3 electrons from the outermost shell and ${\mathrm{U}}^{3+}$ ion is formed.
• So, the electronic configuration of ${\mathrm{U}}^{3+}$ ion is $\left[\mathrm{Rn}\right]\mathbf{5}{\mathbf{f}}^{\mathbf{3}}$.