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The spin only magnetic moment of Fe^(3+)...

The spin only magnetic moment of `Fe^(3+)` ion (in BM) is approximately :

A

4

B

7

C

5

D

6

Text Solution

Verified by Experts

The correct Answer is:
D
`Fe=26=[Ar]3d^(6)4s^(2)`
`Fe^(2+)=[Ar]3d^(5)`
`:.n=5`
`mu=sqrt(n(n+2))=sqrt(5(5+2))=sqrt(5(7))=sqrt(35)`
`=sqrt(35)=5.91=6BM`
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