TS EAMCET · Chemistry · d and f Block Elements
Which one of the following lanthanide ions does not exhibit paramagnetism?
- A \(\mathrm{Lu}^{3+}\)
- B \(\mathrm{Ce}^{3+}\)
- C \(\mathrm{Eu}^{3+}\)
- D \(\mathrm{Yb}^{3+}\)
Answer & Solution
Correct Answer
(A) \(\mathrm{Lu}^{3+}\)
Step-by-step Solution
Detailed explanation
Generally, paramagnetism is shown by lanthanoid ions. The paramagnetism arises due to presence of unpaired electrons in \(f\)-orbital. \(\mathrm{Lu}^{3+}\left(4 f^{14}\right)\) does not have unpaired electrons. Hence, it does not exhibit paramagnetism.
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