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The spin-only magnetic moment [in units ...

The spin-only magnetic moment [in units of Bohr magneton, `(mu_(B)` of `Ni^(2+))` in aqueous solution would be (atomic number of `Ni=28)`

A

`2.84`

B

`4.90`

C

`0`

D

`1.73`

Text Solution

Verified by Experts

The correct Answer is:
1
`_(28)Ni rarr[Ar]3d^(8) 4s^(2)`

Number of unpaired electrons `(n)=2`
`mu=sqrt(n(n+2))=sqrt(2(2+2))=sqrt(8) ~~ 2.84`
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