\begin{tabular}{|l|l|l|l|l|l|l|} \hline Hydrogen & & 1 & 1 & & & \\ \hline c. ic ium & & & 40 & 20 & & \\ \hline S ilver & & & & 47 & 61 & \\ \hline M excury & & 80 & 201 & & & \\ \hline Iodine & & 127 & 53 & & \\ \hline P o tassium & & & & & & \\ \hline \end{tabular} \begin{tabular}{|l|l|l|l|l|l|l|} \hline Hydrogen & & 1 & 1 & & & \\ \hline c. ic ium & & & 40 & 20 & & \\ \hline S ilver & & & & 47 & 61 & \\ \hline M excury & & 80 & 201 & & & \\ \hline Iodine & & 127 & 53 & & \\ \hline P o tassium & & & & & & \\ \hline \end{tabular}