鉻原子(Cr)的原子序為 24,下列何者是 最穩定的電子組態?
A$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{4}4s^{0}$正確答案
B$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{2}4s^{2}$
C$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{4}4s^{2}$
D$1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{5}4s^{1}$
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