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Question
Chemistry
The effect of lanthanoid contraction in the lanthanoid series of elements by and large means :
Q. The effect of lanthanoid contraction in the lanthanoid series of elements by and large means :
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JEE Main
JEE Main 2019
The d-and f-Block Elements
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A
decrease in both atomic and ionic radii
40%
B
increase in atomic radii and decrease in ionic radii
21%
C
increase in both atomic and ionic radii
23%
D
decrease in atomic radii and increase in ionic radii
16%
Solution:
Due to Lanthanoid contraction both atomic radii and ionic radii decreases gradually in the lanthanoid series.