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% $B:n(B  $B@.(B  $B<T(B : g140826 $B?eLn!!MNJe(B 
% $B:n@.G/7nF|(B : /01/12/25
% $BEE;R%a!<%k(B : g140826@mail.ecc.u-tokyo.ac.jp
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% \mondai{$B:n@.<T(B}{$B:n@.G/7nF|(B}{$BEE;R%a!<%k(B}{$BLdBjHV9f(B}{$BLdBjJ8(B}{$B2rEz(B}
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\mondai
{g140826 $B?eLn(B $BMNJe(B}
{01/12/25}
{g140826@mail.ecc.u-tokyo.ac.jp}
{9-7}
{$B<!$N86;R$N4pDl>uBV$NEE;RG[CV$rI=(B9.3$B$K=>$C$F(B(1s)$^{2}$(2s)$^{ 2}$\ldots $B$N$h$&$KI=$;!#(B
\begin{center}
(a)Si\qquad (b)Au\qquad (c)Er\qquad (d)Ga\qquad (e)As\qquad
\end{center}}
{
18$BB285AG(B($BIT3h@-%,%9(B)X$B$NEE;RG[CV$r(B[X]$B$GI=$9!#I=(B9.3$B$r;29M$K!"$I$N50F;$K$$$/$D$NEE;R$,(B
$BF~$C$F$$$k$+$rD4$Y$l$PNI$$!#$J$*!"(B(b)Au$B$ONc30$G$"$k!#Ez$($O!"(B
\begin{eqnarray}
&(a)\quad {\rm Si}\quad:& [{\rm Ne}](3s)^{2}(3p)^{2}\\
&(b)\quad {\rm Au}\quad:& [{\rm Xe}](6s)(4f)^{14}(5d)^{10}\\
&(c)\quad {\rm Er}\quad:& [{\rm Xe}](6s)^{2}(4f)^{ 12}\\
&(d)\quad {\rm Ga}\quad:& [{\rm Ar}](4s)^{2}(3d)^{10}(4p)\\
&(e)\quad {\rm As}\quad:& [{\rm Ar}](4s)^{2}(3d)^{10}(4p)^{3}
\end{eqnarray}
}
