Which one of the followingionshas thelargestnumberof unpairedd electro

1.	Which one of the followingionshas thelargestnumberof unpairedd electrons ?
Answer» `Zn^(+2)` `NI^(+3)` `Fe^(+2)` `CU^(+2)` Solution :`Fe_(z-26) (AR)4S^(2) 3d^(6)` `Fe^(+2)(A)3d^(6)`

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