\begin{table}%t1
\par
%%\centering

\par
\caption{\label{t:species}Passively advected nuclear species.}
\begin{tabular}{ccccccc}
\hline
\hline
      $n$        &     $p$            &   \nuc{1}{H}    &   \nuc{3}{He}    &   \nuc{4}{He}   &   \nuc{12}{C}   &   \nuc{14}{N}  \\
      \hline
 \nuc{16}{O}   &    \nuc{20}{Ne}  &   \nuc{24}{Mg}  &   \nuc{28}{Si}   &   \nuc{32}{S}   &   \nuc{36}{Ar}  &   \nuc{40}{Ca} \\
 \nuc{44}{Ti}  &    \nuc{48}{Cr}  &   \nuc{52}{Fe}  &   \nuc{54}{Fe}   &   \nuc{56}{Ni}  \\
\par
\hline
\end{tabular}
\end{table}