Which of the metal ion will have highest number of unpaired electrons

1.	Which of the metal ion will have highest number of unpaired electrons
A.	\[C{{u}^{+}}\]
B.	\[F{{e}^{2+}}\]
C.	\[F{{e}^{3+}}\]
D.	\[C{{o}^{2+}}\]
Answer» D. \[C{{o}^{2+}}\]

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Which of the metal ion will have highest number of unpaired electrons

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