(Solved): 0 unpaired electrons: singlet1 unpaired electron: doublet2 unpaired electrons: triplet3 unpaired ele ...

\begin{tabular}{|l|l|l|l|} \hline Element & \begin{tabular}{l} Most stable spin state \\ (singlet, triplet, etc) \end{tabular} & \begin{tabular}{l} Electronic \\ configuration \end{tabular} & Total energy \\ \hline $\mathrm{Cu}$ & & & \\ \hline $\mathrm{Zn}$ & & & \\ \hline $\mathrm{Ga}$ & & & \\ \hline $\mathrm{Ge}$ & & & \\ \hline $\mathrm{As}$ & & & \\ \hline $\mathrm{Se}$ & & & \\ \hline $\mathrm{Br}$ & & & \\ \hline \end{tabular}