Which of the following has highest paired 4f electrons ?A. `Yb ^(3+)`B – InterviewSolution

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1.	Which of the following has highest paired 4f electrons ?A. `Yb ^(3+)`B. `Pr ^(3+)`C. `Pm ^(3+)`D. `Sm^(3+)`
Answer» Correct Answer - A `Yb^(3+)` has electronic configuration `6s^(0), 4f^(13), 5d^(0),` containg 13 4f-electrons. Six paired electrons and only one unpaired electrons.

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