A) 3
B) 4
C) 5
D) 6
Correct Answer: D
Solution :
\[F{{e}_{26}}-[Ar]\,\,3{{d}^{6}}4{{s}^{2}}\] \[F{{e}^{2+}}\] (24 electrons) \[-[Ar]\,\,3{{d}^{6}}4{{s}^{0}}\]
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