Chemistry · General trends in properties of the first-row transition elements: physical properties, ionization enthalpy, oxidation states, atomic radii, colour, catalytic behaviour, magnetic properties, complex formation, interstitial compounds, alloy formation

A d-block element has total spin value of Then, the spin only magnetic moment of

A d-block element has total spin value of \( +3 . \) Then, the spin only magnetic moment of the element is approximately:

  • A. 2.83 В.M.
  • B. 3.87 В.М.
  • C. 5.9 в.М
  • D. 6.93 В.М.

Step-by-step solution

Total spin value of +3 implies the total spin quantum number S = 3/2 (since each unpaired electron contributes 1/2). Thus, number of unpaired electrons n = 2S = 3. Spin-only magnetic moment μ = √[n(n+2)] = √(3×5) = √15 ≈ 3.87 B.M.
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