In which of the lanthanide elements, 5d elements does not shift to 4f – InterviewSolution

1.	In which of the lanthanide elements, 5d elements does not shift to 4f orbita ls ?
Answer» CE, Eu, Yb La, GD, LU Ce, Nd, Dy Sm, HO, Er Solution :`La(57) to [XE] 6s^2 5d^1 4f^0` Gd (64) `to [Xe] 6s^2 5d^1 4f^7` `Lu (71) to [Xe ] 6s^2 5d^14f^14`

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