The gradual decrease in size (actionoid contraction) is from element t – InterviewSolution

1.	The gradual decrease in size (actionoid contraction) is from element to element is greater among the actinoids than that among the lanthanoids (lanthanoid contraction).
Answer» SOLUTION :Actinoid contraction is greater than LANTHANOID contraction. This is DUE to the POOR shielding by 5f-electrons than by 4f electrons.

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