\begin{table}%t10
%\centering
\par
\caption{Partition functions in Ra I, Ra II, Ac I and Ac II.}\label{table10}
$
\begin{array}{rrrrrr}
\hline \hline 
T~({\rm K})   &   {\rm Ra~I} &  {\rm Ra~II} &   {\rm Ac~I} &  {\rm Ac~II} \\
 \hline  
3000    &  1.03 &  2.02 &  6.31 &  1.99 \\
3500    &  1.07 &  2.05 &  6.96 &  2.50 \\
4000    &  1.15 &  2.10 &  7.72 &  3.09 \\
4500    &  1.26 &  2.16 &  8.64 &  3.73 \\
5000    &  1.43 &  2.25 &  9.73 &  4.42 \\
5500    &  1.66 &  2.35 & 11.01 &  5.16 \\
6000    &  1.95 &  2.46 & 12.50 &  5.94 \\
6500    &  2.31 &  2.59 & 14.21 &  6.75 \\
7000    &  2.76 &  2.73 & 16.16 &  7.60 \\
7500    &  3.30 &  2.89 & 18.37 &  8.49 \\
8000    &  3.97 &  3.05 & 20.86 &  9.42 \\
8500    &  4.76 &  3.22 & 23.67 & 10.38 \\
9000    &  5.70 &  3.39 & 26.81 & 11.39 \\
9500    &  6.81 &  3.57 & 30.32 & 12.44 \\
10~000   &  8.10 &  3.77 & 34.22 & 13.53 \\
10~500   &  9.58 &  3.96 & 38.54 & 14.67 \\
11~000   & 11.26 &  4.17 & 43.31 & 15.87 \\
11~500   & 13.17 &  4.38 & 48.54 & 17.12 \\
12~000   & 15.30 &  4.61 & 54.28 & 18.42 \\
12~500   & 17.67 &  4.84 & 60.52 & 19.79 \\
13~000   & 20.29 &  5.09 & 67.29 & 21.22 \\
13~500   & 23.15 &  5.36 & 74.62 & 22.73 \\
14~000   & 26.26 &  5.63 & 82.51 & 24.30 \\
\hline
\end{array}
$
\end{table}