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The electronic configuration of chromium is
(1) \( [\mathrm{Ne}] 3 \mathrm{~s}^{2} 3 \mathrm{p}^{6} 3 \mathrm{~d}^{4} 4 \mathrm{~s}^{2} \)
(2) \( [\mathrm{Ne}] 3 \mathrm{~s}^{2} 3 \mathrm{p}^{6} 3 \mathrm{~d}^{5} 4 \mathrm{~s}^{1} \)
(3) \( [\mathrm{Ne}] 3 \mathrm{~s}^{2} 3 \mathrm{p}^{5} 3 \mathrm{~d}^{5} 4 \mathrm{~s}^{2} \)
(4) \( [\mathrm{Ne}] 3 \mathrm{~s}^{2} 3 \mathrm{p}^{5} 3 \mathrm{~d}^{6} 4 \mathrm{~s}^{1} \)
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