question_answer

The electronic configuration of the\[{{O}^{2-}}\]ion is

A)  \[\text{1}{{\text{s}}^{\text{2}}}\text{,2}{{\text{s}}^{\text{2}}}\text{,2}{{\text{p}}^{\text{4}}}\]    

B)  \[\text{1}{{\text{s}}^{\text{2}}}\text{,2}{{\text{s}}^{\text{2}}}\text{,2}{{\text{p}}^{\text{6}}}\text{3}\]

C)  \[\text{1}{{\text{s}}^{\text{2}}}\text{,2}{{\text{s}}^{\text{2}}}\text{,2}{{\text{p}}^{\text{5}}}\]    

D)  \[\text{1}{{\text{s}}^{\text{2}}}\text{,2}{{\text{s}}^{\text{2}}}\]