Question:
The pair of Lanthanoid ions which are diamagnetic is
The pair of Lanthanoid ions which are diamagnetic is
Updated On: Dec 4, 2024
- Ce4+ and Yb2+
- Ce3+ and Eu2+
- Gd3+ and Eu3+
- Pm3+ and Sm3+
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The Correct Option is A
Solution and Explanation
1. Diamagnetic ions have no unpaired electrons.
2. $Ce^{4+}$ ([Xe]) has no unpaired electrons.
3. $Yb^{2+}$ ([Xe]$4f^{14}$) has fully paired 4$f$-orbitals.
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