A) \[M{{n}^{2+}}\]
B) \[F{{e}^{2+}}\]
C) \[Co\]
D) \[Ge\]
Correct Answer: B
Solution :
\[F{{e}^{2+}}-1{{s}^{2}}2{{s}^{2}}{{p}^{6}}3{{s}^{2}}{{p}^{6}}{{d}^{6}}\].
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