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Q.

 M3+ ion of the first transition series metal 'M' has a magnetic moment 1.73 BM. The atomic number of the metal 'M' is

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a

29

b

22

c

24

d

21

answer is D.

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Detailed Solution

Z = 22 [Ar] 4s23d2

M+3  [Ar]4s0 3d1

In this one unpaired electron so the magnetic moment 1.73B.M

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