Question

Write the ground-state electronic configuration of the following transition elements ${\mathrm{V}}^{5+},{\mathrm{Au}}^{3+}\&{\mathrm{Fe}}^{2+}$

Answer 1

Electronic configuration: Electronic configuration is the distribution of the electrons in orbitals of atoms using some basic principles like the Pauli exclusion principle and the Aufbau principle.

Transition elements: The transition elements are those $\mathrm{d}-$block elements that have an incomplete filled d-orbital.

Electronic configuration of ${\mathrm{V}}^{5+}$:

• The atomic number of vanadium is $23$.
• The electronic configuration of vanadium is $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^{2}3{\mathrm{p}}^{6}3{\mathrm{d}}^{3}4{\mathrm{s}}^2$
• The electronic configuration of ${\mathrm{V}}^{5+}$ is $1{\mathrm{s}}^{2}2{\mathrm{s}}^{2}2{\mathrm{p}}^{6}3{\mathrm{s}}^{2}3{\mathrm{p}}^6$.

Electronic configuration of ${\mathrm{Au}}^{3+}$:

• The atomic number of gold is $79$.
• The electronic configuration of gold is $\left[\mathrm{Xe}\right]4{\mathrm{f}}^{14}5{\mathrm{d}}^{10}6{\mathrm{s}}^1$.
• The electronic configuration of ${\mathrm{Au}}^{3+}$ is $\left[\mathrm{Xe}\right]4{\mathrm{f}}^{14}5{\mathrm{d}}^8$.

Electronic configuration of ${\mathrm{Fe}}^{2+}$:

• The atomic number of iron is $26$
• The electronic configuration of iron is $\left[\mathrm{Ar}\right]3{\mathrm{d}}^{6}4{\mathrm{s}}^2$.
• The electronic configuration of ${\mathrm{Fe}}^{2+}$is $\left[\mathrm{Ar}\right]3{\mathrm{d}}^6$