Which of the following cations possesses a pseudo-inert gas electronic configuration ()? — Chemical Bonding Chemistry Question

💡 Solution & Explanation

A pseudo-inert gas configuration consists of 18 electrons in the outermost shell. $Zn^{2+}$ has the configuration $[Ar] 3d^{10}$, which has 18 electrons in its outermost 3rd shell ($3s^2 3p^6 3d^{10}$).