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Chemistry · PYQ NEET UG 2024
हिन्दीThe pair of lanthanoid ions which are diamagnetic is
Correct answer · Option 3
\( \text{Ce}^{4+} \) and \( \text{Yb}^{2+} \)
Explanation
\( \text{Ce}^{4+} \) has electronic configuration \( [\text{Xe}] 4f^0 \) and \( \text{Yb}^{2+} \) has \( [\text{Xe}] 4f^{14} \). Both have no unpaired electrons and are diamagnetic.
