The general valence shell electronic configuration of transition elements (d-block) is accurately re — Periodic Table and Periodicity Chemistry Question

💡 Solution & Explanation

The d-block elements involve the filling of the penultimate d-subshell. Their general outer electronic configuration is $(n-1)d^{1-10} ns^{0-2}$. The inclusion of the $0$ in $ns^{0-2}$ is necessary to account for exceptional configurations like Palladium ($Pd$), which is $4d^{10} 5s^0$.