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NEETChemistryd and f Block Elements

On the basis of Lanthanoid contraction, explain the following Radii of 4d and 5d block elements.

Options

  1. ARadii of 4d block elements are larger than 5d block elements.
  2. BRadii of 5d block elements are larger than 4d block elements.
  3. CRadii of 4d and 5d block elements are similar.
  4. DRadii of both 4d and 5d block elements do not follow any trend.

Correct answer

C. Radii of 4d and 5d block elements are similar.

Step-by-step solution

Correct Option is : (C) Radii of 4d and 5d block elements are similar.

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