Which one of the following lanthanoids does not form \(\mathrm{MO_2}\)? [M is lanthanoid metal]
Show Hint
- Nd
- Dy
- Yb
- Pr
The Correct Option is C
Solution and Explanation
Yb (\(4f^{14}6s^2\)) shows +2 (stable \(4f^{14}\)) and +3, not +4.
So Yb does not form \(\mathrm{MO_2}\).
Answer: (3) Yb
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