question_answer

Which of the following is the correct configuration of chromium atom in ground energy state?

A) \[~\left[ \text{Ar} \right]\text{ 3}{{\text{d}}^{\text{5}}}\text{ 4}{{\text{s}}^{\text{1}}}\]                

B)  \[~[Ar]\text{3}{{\text{d}}^{4}}\text{ 4}{{\text{s}}^{2}}\]

C) \[\left[ \text{Ar} \right]\text{ 3}{{\text{d}}^{\text{6}}}\text{ 4}{{\text{s}}^{\text{0}}}\]                

D)  \[\left[ \text{Kr} \right]\text{ 4}{{\text{d}}^{\text{5}}}\text{ 5}{{\text{s}}^{\text{1}}}\]