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Question: Answered & Verified by Expert
\(4 f^2\) electronic configuration is found in
Chemistryd and f Block ElementsWBJEEWBJEE 2023
Options:
  • A \(\mathrm{Pr}\)
  • B \(\mathrm{Pr}^{3+}\)
  • C \(\mathrm{Nd}^{3+}\)
  • D \(\mathrm{Pm}^{3+}\)
Solution:
2179 Upvotes Verified Answer
The correct answer is: \(\mathrm{Pr}^{3+}\)
Hint : \(\operatorname{Pr}(59)=[X e] 4 f^3 6 s^2\)
\(\therefore \mathrm{Pr}^{+3}=[\mathrm{Xe}] 4 \mathrm{f}^2\)

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