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Calculate the 'spin-only' magnetic momen...

Calculate the 'spin-only' magnetic moment of `M^(2+)(aq)` ion (Z = 27).

Text Solution

Verified by Experts

Electronic configuration of M with Z = 27 is `[Ar]3d^(7)4s^(2)`.
Thus, Electronic configuration of `M^(2+)` will be `[Ar]3d^(7)`.
This can be represented as

Thus, it has three unpaired electrons.
`:.` Spin-only magnetic moment `(mu)=sqrt(n(n+2))BM=sqrt(3(3+2))=sqrt(15)BM=3.87" BM"`
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