1.

Magnetic moment 2.84BM is given by: (Atoms No: Ni= 28, Ti= 22,Cr= 24, Co= 27)

Answer»

`Ni^(2+)`
`Ti^(3+)`
`Cr^(2+)`
`Co^(2+)`

SOLUTION :
NUMBER of UNPAIRED electrons (n)=2
`:. MU =sqrt(n(n+2))`
Hence `mu` 2.8BM, paramagnetic


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