d and f BLOCK ELEMENTS

What does the observed magnetic moment provide a useful indication about in an atom, molecule, or ion?

• The total number of electrons
• The number of paired electrons
• The atomic mass
• The number of unpaired electrons

How does the magnetic moment (calculated using the spin-only formula) generally change with an increasing number of unpaired electrons?

• It decreases
• It remains constant
• It increases
• It fluctuates randomly

What is the magnetic moment of a single unpaired electron according to the text?

• 1.00 Bohr magneton
• 1.41 Bohr magnetons
• 1.73 Bohr magnetons (BM)
• 2.00 Bohr magnetons

What is the unit used to express magnetic moment in the provided 'spin-only' formula?

• Gauss
• Tesla
• Bohr magneton (BM)
• Ampere-meter²

For first-row transition metal compounds, which contribution to magnetic moment is typically considered negligible?

• Spin angular momentum
• Orbital angular momentum
• Nuclear magnetic moment
• Electron-electron repulsion