Magnetic moment 2.83 BM is given by which of the following ions? (At. nos. T i = 22 , C r = 24 , M n = 25 , N i = 28 )

Question

Magnetic moment 2.83 BM is given by which of the following ions? (At. nos. T i = 22 , C r = 24 , M n = 25 , N i = 28 ), M n 2 +, N i 2 +, T i 3 +, C r 3 +

MARKS App · Accepted Answer

N i 2 + = ( A r ) 3 d 8 N i + 2 has two unpaired electron. ( n = 2 ) As μ = n ( n + 2 ) = 2 ( 2 + 2 ) = 2.83 B . M . In Mn 2 + ; n = 5 Cr 3 + ; n = 3 Ti 3 + ; n = 1

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