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\begin{tabular}{|c|c|c|c|c|c|c|c|c|}
\hline
& Element & Atomic \# & Mass \# & \begin{tabular}{c}
Isotopic \\
Symbol
\end{tabular} & \# [tex]$p ^{+}$[/tex] & \# [tex]$e^-$[/tex] & \# [tex]$n ^0$[/tex] & \begin{tabular}{c}
Atomic Mass \\
(amu)
\end{tabular} \\
\hline
1 & & 9 & 19 & & & & & \\
\hline
2 & & & & [tex]${ }^{45}_{21} Sc$[/tex] & & & & \\
\hline
3 & & & & & 33 & & 41 & \\
\hline
4 & Argon & & 38 & & & & & \\
\hline
5 & & & 39 & & & 18 & & \\
\hline
6 & & 27 & & & & & 32 & \\
\hline
7 & & & & [tex]${ }_{32}^{32} Ge$[/tex] & & & & \\
\hline
8 & Ruthenium & & 102 & & & & & \\
\hline
9 & & 48 & 112 & & & & & \\
\hline
10 & & & & [tex]${ }^{134}_{55} Cs$[/tex] & & & & \\
\hline
11 & & & 191 & & & 77 & & \\
\hline
12 & & & & & 74 & & 109 & \\
\hline
13 & Mercury & & & & & & 119 & \\
\hline
14 & & 90 & 232 & & & & & \\
\hline
15 & & & & [tex]${ }^{294}_{118} Og$[/tex] & & & & \\
\hline
\end{tabular}


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