Tabla periódica y configuración electrónica externa (6912)

, por F_y_Q

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Completa la siguiente tabla mirando la tabla periódica:

\begin{array}{|c|c|c|c|c|c|}\hline \bm{S\acute{\imath}mbolo} & \bf Elemento & \bf Z & \bf Grupo & \bf Periodo & \bm{\acute{U}ltimo\ nivel\ ocupado} \\\hline \hline Br & & & & & \\\hline & bario & & & & \\\hline & & & 12 & 4 & \\\hline & & & & & 4s^24p^4 \\\hline & radio & & & & \\\hline & & & & & 5s^24d^2 \\\hline & & 6 & & & \\\hline \end{array}

P.-S.

\begin{array}{|c|c|c|c|c|c|}\hline \bm{S\acute{\imath}mbolo} & \bf Elemento & \bf Z & \bf Grupo & \bf Periodo & \bm{\acute{U}ltimo\ nivel\ ocupado} \\\hline \hline Br & \color[RGB]{192,0,0}{\bf bromo} & \color[RGB]{192,0,0}{\bf 35} & \color[RGB]{192,0,0}{\bf 17} & \color[RGB]{192,0,0}{\bf 4} & \color[RGB]{192,0,0}{\bm{4s^24p^5}} \\\hline \color[RGB]{192,0,0}{\bf Ba} & bario & \color[RGB]{192,0,0}{\bf 56} & \color[RGB]{192,0,0}{\bf 2} & \color[RGB]{192,0,0}{\bf 6} & \color[RGB]{192,0,0}{\bm{6s^2}} \\\hline \color[RGB]{192,0,0}{\bf Zn} & \color[RGB]{192,0,0}{\bf cinc} & \color[RGB]{192,0,0}{\bf 30} & 12 & 4 & \color[RGB]{192,0,0}{\bm{4s^23d^{10}}} \\\hline \color[RGB]{192,0,0}{\bf Se} & \color[RGB]{192,0,0}{\bf selenio} & \color[RGB]{192,0,0}{\bf 34} & \color[RGB]{192,0,0}{\bf 16} & \color[RGB]{192,0,0}{\bf 4} & 4s^24p^4 \\\hline \color[RGB]{192,0,0}{\bf Ra} & radio & \color[RGB]{192,0,0}{\bf 88} & \color[RGB]{192,0,0}{\bf 2} & \color[RGB]{192,0,0}{\bf 7} & \color[RGB]{192,0,0}{\bm{7s^2}} \\\hline \color[RGB]{192,0,0}{\bf Zr} & \color[RGB]{192,0,0}{\bf circonio} & \color[RGB]{192,0,0}{\bf 40} & \color[RGB]{192,0,0}{\bf 4} & \color[RGB]{192,0,0}{\bf 5} & 5s^24d^2 \\\hline \color[RGB]{192,0,0}{\bf C} & \color[RGB]{192,0,0}{\bf carbono} & 6 & \color[RGB]{192,0,0}{\bf 14} & \color[RGB]{192,0,0}{\bf 2} & \color[RGB]{192,0,0}{\bm{2s^22p^2}} \\\hline \end{array}