d and f BLOCK ELEMENTS Quiz

• It removes a core electron.
• The 3d electron is closer to the nucleus.
• It involves removing an electron from the stable half-filled 3d subshell.
• The nuclear charge increases significantly.

• The number of ligands only
• The size of the metal ion only
• The nature of the metal ion and the ligands, particularly the ligand field stabilization energy.
• The temperature of the reaction.

• d-electrons increase the atomic size.
• Electrons are only added to the s-subshell.
• The initial decrease is due to increasing nuclear charge, while the later constancy is due to shielding by d-electrons.
• Ionization energy trends cause this.

• Fewer unpaired electrons lead to a higher magnetic moment.
• There is no relationship.
• More unpaired electrons generally lead to a higher magnetic moment.
• Paired electrons contribute most to the magnetic moment.

• The +2 state has lower charge density.
• The +1 state (Cu⁺) has a fully filled 3d subshell, providing extra stability.
• The +2 state is harder to oxidize.
• The +1 state is larger.