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Manipal MET2020ChemistryStructure of Atom

Which of the following ions has the highest magnetic moment?

Options

  1. AZn ²⁺
  2. BTi ³⁺
  3. CSc ³⁺
  4. DMn ²⁺

Correct answer

D. Mn ²⁺

Step-by-step solution

Magnetic moment no. of unpaired electron. Zn ²⁺=3 d¹⁰ 4 s^0 unpaired electron =0 ; =0 T I ³⁺=3 d¹⁰ 4 s^0 unpaired electron=1 = n(n+2) =1.73 Sc ³⁺=3 d^0 4 s^0 unpaired electron =0 ; =0 Mn ²⁺=3 d^5 4 s^0 unpaired electrons =5 = 5(5+2) =5.91

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