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The number of unpaired electron in `Mn^(4+) (Z = 25)` is :-

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The number of unpaired electron in `Mn^(4+) (Z = 25)` is :-
A. Four
B. Two
C. Five
D. Three
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Correct Answer - D
`Mn^(4+) = 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(6) 3d^(3)`
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