Class 12 Chemistry The d- and f-Block Elements Lanthanoids and Actinoids

Easy

What is the effect of lanthanoid contraction in the lanthanoid series of elements?

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A
Increase in both atomic and ionic radii
B
Decrease in atomic radii and increase in ionic radii
C
Decrease in both atomic and ionic radii
D
Increase in atomic radii and decrease in ionic radii

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Class 12 Questions

Class 12

Chemistry Questions

Chapter

The d- and f-Block Elements

Subtopic

Lanthanoids and Actinoids

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Provide the electronic configurations of lanthanoids $(4f)$ series elements $(Ln)$ and their ions $Ln^{2+}$ and $Ln^{3+}$,and state their characteristics.

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