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Which of the following is the correct order of arrangement of the first five lanthanides according to atomic number?(a) La, Ce, Pr, Nd, Pm(b) La, Pr, Ce, Pm, Nd(c) La, Pr, Ce, Nd, Pm(d) La, Ce, Pr, Pm, NdI had been asked this question during an interview for a job.This key question is from D and F-Block Elements topic in section D and F-Block Elements of Chemistry – Class 12 |
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Answer» Correct choice is (a) La, Ce, Pr, Nd, Pm |
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