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AP EAMCET2011ChemistryStructure of Atom

Identify the order in which the spin only magnetic moment (in BM) increases for the following four ions

Options

  1. AI,II,IV,III
  2. BIV,I,II,III
  3. CIII,IV,I,II
  4. DIII,II,IV,I

Correct answer

D. III,II,IV,I

Step-by-step solution

Magnetic moment ( ) is given as = n(n+2) where, n is number of unpaired electrons. Ti ²⁺:[ Ar ] 3 d^2 ; number of unpaired electrons =2 Cu ²⁺:[ Ar ] 3 d^9 ; number of unpaired electrons =1 V ²⁺:[ Ar ] 3 d^3 ; number of unpaired electrons =3 Hence, the increasing order of magnetic moment is as Cu ²⁺ < Ti ²⁺ < V ²⁺ < Fe ²⁺ .

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