\begin{table}%t3
\caption{\label{tab3}\ion{Fe}{ii} energy levels for the  3d$^{6}$~($^{3}$F)4f subconfiguration. Energies
between parentheses are predicted values.}
\small%\centering
\par
\begin{tabular}{crcrcrcrcrcrrrr}
\hline\hline\noalign{\smallskip}
\multicolumn{1}{c}{Design-}&
\multicolumn{1}{c}{$J$}&
\multicolumn{1}{c}{Energy}&
\multicolumn{1}{c}{c$-$o}&
\multicolumn{1}{c}{Design-}&
\multicolumn{1}{c}{$J$}&
\multicolumn{1}{c}{Energy}&
\multicolumn{1}{c}{c$-$o}&
\multicolumn{1}{c}{Design-}&
\multicolumn{1}{c}{$J$}&
\multicolumn{1}{c}{Energy}&
\multicolumn{1}{c}{c$-$o}&
 \\
\multicolumn{1}{c}{ation}&
\multicolumn{1}{c}{}&
\multicolumn{1}{c}{cm$^{-1}$}&
\multicolumn{1}{c}{cm$^{-1}$}&
\multicolumn{1}{c}{ation}&
\multicolumn{1}{c}{}&
\multicolumn{1}{c}{cm$^{-1}$}&
\multicolumn{1}{c}{cm$^{-1}$}&
\multicolumn{1}{c}{ation}&
\multicolumn{1}{c}{}&
\multicolumn{1}{c}{cm$^{-1}$}&
\multicolumn{1}{c}{cm$^{-1}$}
\\
 \hline
4[7]   & 15/2 & 124~421.468 &$+$12.238 & \\
       & 13/2 & 124~436.436 &$+$36.895 & \\
\\
4[6]   &13/2  & 124~400.107 &$+$4.567 &  3[6]& 13/2 & 124~661.274 &$+$15.827 & \\
       &11/2  & 124~402.557 &$-$3.593 &     & 11/2 & 124~656.535 &$+$7.092 & \\
\\
4[5]   &11/2  & 124~388.840 &$+$3.174 & 3[5]& 11/2 & 124~626.900 &$+$3.179  &2[5] & 11/2& 124~803.873&$+$20.054\\
       &9/2   & 124~385.706 &$+$2.938 &     &  9/2 & 124~636.116 &$+$3.120  &     & 9/2 & 124~809.727&$+$15.721\\
\\
4[4]   &9/2   & 124~401.939 &$+$4.674 & 3[4]&  9/2 & 124~623.120 &$+$3.085  &2[4] & 9/2 & 124~793.905 &$+$12.624     \\
       &7/2   & 124~385.010 &$+$0.698 &     &  7/2 & 124~620.914 &$+$7.289  &     & 7/2 & 124~783.748 &$+$15.272\\
\\
4[3]   &7/2   & 124~416.110&$+$13.187  & 3[3] & 7/2 & 124~641.989 &$+$9.092  &2[3] & 7/2 &(124~814.025)& \\
       &5/2   & 124~403.474 &$+$1.243 &      & 5/2 & 124~653.022 &$-$8.651  &     & 5/2 &(124~808.178) \\
\\
4[2]   &5/2   & 124~434.563 &$+$23.142  &   3[2] & 5/2 &(124~670.316)&   & 2[2] & 5/2 &(124~835.676) & \\
       &3/2   & 124~460.410  &$-$11.802 &        & 3/2 &(124~678.325) &   &       & 3/2 &(124~833.418) & \\   
\\
4[1]   &3/2   & (124~487.989)&  &  3[1] &3/2 &(124~697.077) &  &  2[1] & 3/2 &(124~876.972)&    \\
       &1/2   & (124~484.721)&  &       &1/2 &(124~708.453) &   &     & 1/2 &(124~874.375)&      \\
\\
       &      &              & & 3[0] &1/2 &  124~731.762 &$-$4.875                   \\
\hline 
\end{tabular}
\tablefoot{Energies
between parentheses are predicted values.}
\end{table}