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COMEDK2024ChemistryChemical Bonding and Molecular Structure

The magnetic moment of a divalent ion in aqueous solution if the atomic number of metal is 25 will be

Options

  1. A5.92 BM
  2. B1.73 BM
  3. C3.87 MM
  4. D4.90 BM

Correct answer

A. 5.92 BM

Step-by-step solution

Atomic number, (z)=25 for Mn electronic configuration of Mn =[ Ar ] 3 d^5 4 s^2 electronic configuration of Mn ²⁺=[ Ar ] 3 d^5 Thus, Mn ²⁺(a q) has 5 unpaired electrons. Magnetic moment is given by the formula. aligned _s & = n(n+2- = 5(5+2) = 35 B.M. & =5.92 B.M. aligned

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