d and f BLOCK ELEMENTS

Based on Table 4.2, which element has a standard electrode potential (E°) for the M2+/M couple that is most negative?

• Titanium (Ti)
• Iron (Fe)
• Scandium (Sc)
• Zinc (Zn)

What is the electronic configuration of a Sc3+ ion?

• [Ar] 3d1
• [Ar]
• [Ar] 4s2
• [Ar] 3d1 4s2

Why does Zinc (Zn) have a relatively low enthalpy of atomisation compared to its neighbors?

• Its large atomic size
• Its high ionization enthalpy
• Its filled 3d subshell contributes less to metallic bonding
• Its low atomic mass

Based on Table 4.2, what is the approximate first ionization enthalpy (ΔiH° I) of Nickel (Ni)?

• 758 kJ mol–1
• 736 kJ mol–1
• 745 kJ mol–1
• 834 kJ mol–1

What is the electronic configuration of a V2+ ion?

• [Ar] 3d1
• [Ar] 3d2
• [Ar] 3d3
• [Ar] 3d4