Which element from the following has a completely filled $f$-orbital in both observed and expected electronic configurations?
- A$Sm$
- B$Pr$
- C$Lu$
- D$Dy$
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Which of the following is a lanthanoid element?
Which of the following elements is a lanthanide (Rare–earth element)?
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View SolutionWhich of the following lanthanoid ions is diamagnetic?
(At. nos. $Ce = 58, Sm = 62, Eu = 63, Yb = 70$)
(At. nos. $Ce = 58, Sm = 62, Eu = 63, Yb = 70$)
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