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Which one of the following pairs of ions...

Which one of the following pairs of ions have the same electronic configuration?

A

`Cr^(+3),Fe^(+3)`

B

`Fe^(+3), Mn^(+2)`

C

`Fe^(+3), Co^(+3)`

D

`Sc^(+3), Cr^(+3)`

Text Solution

Verified by Experts

The correct Answer is:
B
`Fe^(+3) 4s^(@) 3d^(5) Mn^(+2) 4s^(@) 3d^(5)` no of unpaired electrons in these two ions is same (2)
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