d and f BLOCK ELEMENTS

What is the calculated spin-only magnetic moment for an ion with 5 unpaired electrons?

• 4.90 BM
• 5.30 BM
• 5.92 BM
• 6.00 BM

Based on the information provided, which statement is true regarding the magnetic properties of transition metal ions?

• All transition metal ions are paramagnetic
• Magnetic moment is independent of electron configuration
• Only ferromagnetic substances have magnetic moments
• The number of unpaired electrons directly influences the magnetic moment

What is the significance of the 'spin-only' formula in the context of transition metal chemistry?

• It calculates exact magnetic moments
• It ignores all electron contributions
• It is only valid for ferromagnetic substances
• It provides a method to estimate magnetic moments based on unpaired electron count

Which of the following ions has an electronic configuration of 3d⁸?

• Co²⁺
• Ni²⁺
• Cu²⁺
• Zn²⁺

What is the calculated spin-only magnetic moment for a Sc²⁺ ion?

• 0 BM
• 1.73 BM
• 2.84 BM
• 3.87 BM