D-And F-Block Elements Ques 404
Question: The lanthanide contraction relates to
[Kerala PMT 2004]
Options:
A) Atomic radii
B) Atomic as well as $ {{M}^{3+}} $ radii
C) Valence electrons
D) Oxidation states
E) Ionisation energy
Show Answer
Answer:
Correct Answer: B
Solution:
The lanthanide contraction relates to atomic as well as $ {{M}^{3+}} $ radii in which the regular decrease in the size of lanthanoid ion from $ L{{a}^{3+}} $ to $ L{{u}^{3+}} $ are found.
