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NEET · Chemistry · STD 12 - 4. d and f- block elements

निम्न में से कौर-सा लैन्थनॉयड आयन प्रतिचुंबकीय है? (प्रमाणु क्रमांक \(Ce =58, Sm =62, Eu =63, Yb =70)\)

  1. A \(Eu^{2+}\)
  2. B \(Yb^{2+}\)
  3. C \(Ce^{2+}\)
  4. D \(Sm^{2+}\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(Yb^{2+}\)

Step-by-step Solution

Detailed explanation

Lanthanoid ion with no unpaired electron is diamagnetic in nature. \(\mathrm{Ce}_{58}=[\mathrm{Xe}] 4 \mathrm{f}^{2} 5 \mathrm{d}^{0} 6 \mathrm{s}^{2}\)
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