1.

Calculate the magnetic moment and the number of unpaired electrons in Cu^(2+).

Answer»

Solution :Cu (Z = 29) Electronic CONFIGURATION `[Ar]3d^(10) 4S^(1)`
`Cu^(2+)` Electronic configuration `[Ar] 3d^(9)` The number of UNPAIRED electrons is 1.
Magnetic moment `mu = sqrt(1(1+2)) = sqrt(3) = 1.732 mu_(B)`


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