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Calculate the spin only magnetic moment ...

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

Text Solution

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Electronic configuration of element M(Z=27):`[Ar]3d^(7)4s^(2)`
Electronic configuration `M^(2+)(aq)` ion : `3d^(7)`
Magnetic moment of `M^(2+)(aq)` ion with n=3 :
`mu=sqrt(n(n+2))`
`=sqrt(3(3+2))=sqrt(15)=3.87 BM.`
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