Transition and Inner Transition Elements - Formula Sheet

Magnetic Properties

Spin-Only Magnetic Moment: \(\mu = \sqrt{n(n+2)}\) BM

• \(\mu\): Magnetic moment in Bohr Magnetons (BM)
• \(n\): Number of unpaired electrons

General Electronic Configurations

d-Block Elements: \([Noble Gas] (n-1)d^{1-10} ns^{1-2}\)

• \(n\): Principal quantum number (4 to 7)

Lanthanoids (4f series): \([Xe] 4f^{1-14} 5d^{0-1} 6s^2\)

Actinoids (5f series): \([Rn] 5f^{0-14} 6d^{0-2} 7s^2\)

Electrochemical Calculations

Equivalent Weight of \(KMnO_4\):

• Acid medium: \(\frac{Molecular Weight}{5} = 31.6\)
• Basic medium: \(\frac{Molecular Weight}{1} = 158\)
• Neutral medium: \(\frac{Molecular Weight}{3} = 52.67\)