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NEETChemistryd and f Block Elements

What is lanthanoid contraction?

Options

  1. ALanthanoid contraction is the phenomenon where lanthanides have the same atomic size as the elements in the pr
  2. BLanthanoid contraction is the increase in atomic size as you move from top to bottom within the lanthanide ser
  3. CLanthanoid contraction refers to the expansion of atomic size as you move from left to right across the lantha
  4. DLanthanide contraction is the gradual decrease in the atomic and ionic size of lanthanoids with an increase in

Correct answer

A. Lanthanoid contraction is the phenomenon where lanthanides have the same atomic size as the elements in the pr

Step-by-step solution

Correct Option is : (A) Lanthanoid contraction is the phenomenon where lanthanides have the same atomic size as the elements in the preceding period of the periodic table.

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