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MHT CET202013 Oct 2020Evening ShiftChemistryd and f Block ElementsActual

Which among the following lanthanoids has smallest atomic size?

Options

  1. APr
  2. BCe
  3. CSm
  4. DPm

Correct answer

C. Sm

Step-by-step solution

Atomic size decreases across the series from left to right. Ce > Pr > Pm > Sm

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