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MHT CET202014 Oct 2020Morning ShiftChemistryd and f Block ElementsActual

Identify correct decreasing order of ionic radii of lanthanoids.

Options

  1. ASm > Gd > Ce > Pm
  2. BGd > Pm > Ce > Sm
  3. CCe > Pm > Sm > Gd
  4. DPm > Sm > Ce > Gd

Correct answer

C. Ce > Pm > Sm > Gd

Step-by-step solution

Along the lanthanoid series, there is a decrease in ionic radii.

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