A) \[~3{{d}^{4}}4{{s}^{2}}\]
B) \[~3{{d}^{6}}4{{s}^{2}}\]
C) \[~3{{d}^{5}}4{{s}^{2}}\]
D) \[~3{{d}^{5}}4{{s}^{1}}\]
Correct Answer: D
Solution :
\[{{\,}_{24}}Cr\to [Ar]3{{d}^{5}}4s\] Hence, the correct option is [d].
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