GKFix MCQ Question

What is the primary factor that makes the +3 oxidation state predominant for all Lanthanoids?

• A. The formation of Ln³⁺ ions results in stable 4fⁿ electronic configurations
• B. The +3 state requires the least energy to achieve
• C. The +3 state is the only state Lanthanoids can exhibit
• D. The +3 state makes Lanthanoids behave like alkali metals