question_answer

Which of the following metal ions will have maximum number of unpaired electrons      [CPMT 1996]

A)                 \[F{{e}^{+2}}\] 

B)                 \[C{{O}^{+2}}\]

C)                 \[N{{i}^{+2}}\]  

D)                 \[M{{n}^{+2}}\]

Correct Answer: D

Solution :

           \[M{{n}^{+2}}\] ion will have five (maximum) unpaired electrons