\begin{table}%T8
\caption{Initial elemental abundances relative to total hydrogen nuclei.}
 \label{elements}
%\centering
\small
\begin{tabular}{llllllll}
\hline \hline
\noalign{\smallskip}
Element & Abundance & Element & Abundance & Element & Abundance & Element & Abundance\\
\noalign{\smallskip}
\hline
\noalign{\smallskip}
He & 0.14 & C$^+$ & $7.30\times 10^{-5}$ & N & $2.14\times 10^{-5}$ & O & $1.76\times 10^{-4}$ \\ 
F & $2.00\times 10^{-8}$ & Na$^+$ & $3.00\times 10^{-9}$ & Mg$^+$ & $3.00\times 10^{-9}$ & Si$^+$ & $3.00\times 10^{-9}$ \\ 
P$^+$ & $3.00\times 10^{-9}$ & S$^+$ & $2.00\times 10^{-8}$ & Cl$^+$ & $3.00\times 10^{-9}$ & Fe$^+$ & $3.00\times 10^{-9}$ \\
\hline
\end{tabular}
\end{table}