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The spin-only magnetic moment of [CrF(6)...

The spin-only magnetic moment of `[CrF_(6)]^(4)` ( atomic number of Cr is 24) is

A

0

B

1.73 BM

C

2.83 BM

D

4.9 BM

Text Solution

Verified by Experts

The correct Answer is:
D
`._(24)Cr=[Ar]3d^(5)4s^(1),Cr^(2+)`

No. of unpaired `bar€ = 4`, Spin only magnetic moment ` ( mu )`
`= sqrt(n(n+2))= sqrt(4 xx 6) = sqrt(24)= 4.9 BM`
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