Question
Question: Which of the following statements concerning lanthanide elements is false?...
Which of the following statements concerning lanthanide elements is false?
A
All lanthanides are highly dense metals
B
More characteristic oxidation state of lanthanide elements is +3
C
Lanthanides are separated from one another by ion exchange method.
D
Ionic radii of trivalent lanthanides steadily increase with increase in the atomic number.
Answer
Ionic radii of trivalent lanthanides steadily increase with increase in the atomic number.
Explanation
Solution
Ionic radii of trivalent lanthanides decrease with increase in atomic number.