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NEETChemistryd and f Block Elements

What is the term used to describe the gradual decrease in the size of atoms or M3+ ions across the actinoid series?

Options

  1. AAtomic shrinkage
  2. BElectron compression
  3. CActinoid expansion
  4. DActinoid contraction

Correct answer

D. Actinoid contraction

Step-by-step solution

The term "actinoid contraction" to describe the gradual decrease in size across the actinoid series.

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