GKFix MCQ Question

What is the primary electronic factor that differentiates the stability of Ce⁴⁺ from Ce³⁺?

• A. Ce⁴⁺ achieves a noble gas (4f⁰) configuration, while Ce³⁺ has a 4f¹ configuration
• B. Ce⁴⁺ has a half-filled f-subshell, while Ce³⁺ has a partially filled f-subshell
• C. Ce⁴⁺ has no unpaired electrons, while Ce³⁺ has one
• D. Ce⁴⁺ is paramagnetic, while Ce³⁺ is diamagnetic