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Chemistry
Which of the following statements concerning lanthanide elements is false?
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Q. Which of the following statements concerning lanthanide elements is false?
The d-and f-Block Elements
A
Lanthanides are separated from one another by ionexchange method.
11%
B
Ionic radii of trivalent lanthanides steadily increase with increase in the atomic number.
61%
C
All lanthanides are highly dense metals.
28%
D
More characteristic oxidation state of lanthanide elements is $+3$
0%
Solution:
The ionic radii of lanthanide elements decreases steadily with increase in atomic number due to lanthanoid contraction.