GKFix MCQ Question

Why is the E°(M2+/M) value for Zn more negative than that for Cu?

• A. Zn has a lower atomic mass.
• B. Cu has a more negative hydration enthalpy.
• C. Zn has lower ionization enthalpies.
• D. Zn2+ has a stable d10 configuration, providing extra stability that outweighs the energy costs better than for Cu.