Assign reasons for the following:
From element to element the actinoid contraction is greater than the lanthanoid contraction.

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Solution

The actinoid contraction is similar to lanthanoid contraction. This contraction is due to poor shielding by $5 f$ electrons in the actinoids than that by $4 f$ electrons in the lanthanoids.

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Actinoid contraction is greater from element to element than lanthanoid contraction. Why?

Q. Give reason:

(a) Cerium(Ce) exhibits

+ 4

oxidation state.

(b) Actinoid contraction is greater from element to element than lanthanoid contraction.

Q. What is meant by lanthanoid contraction? The actinoid contraction is greater than that of lanthanoid contraction. Why?

From element to element, the actinoid contraction is greater than the lanthanoid contraction due to poor shielding by 5f-electrons in actinoids than that by 4f-electrons in the lanthanoids.

Q. The extent of actinoid contraction is greater than lanthanoid contraction explain.

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Assign reasons for the following:From element to element the actinoid contraction is greater than the lanthanoid contraction.

The actinoid contraction is similar to lanthanoid contraction. This contraction is due to poor shielding by 5f electrons in the actinoids than that by 4f electrons in the lanthanoids.

Assign reasons for the following:
From element to element the actinoid contraction is greater than the lanthanoid contraction.

The actinoid contraction is similar to lanthanoid contraction. This contraction is due to poor shielding by $5 f$ electrons in the actinoids than that by $4 f$ electrons in the lanthanoids.