NEET
- Exam
- NEET
- Subject
- Chemistry
- Chapter
- d and f Block Elements
NEET · Chemistry · d and f Block Elements
What term is used to describe the gradual increase in the size of...
What term is used to describe the gradual increase in the size of atoms or ions across the lanthanoid series?
Options
- ALanthanoid expansion
- BLanthanoid contraction
- CAtomic expansion
- DIonic shrinkage
Correct answer
B. Lanthanoid contraction
Step-by-step solution
The "lanthanoid contraction" to describe the gradual increase in the size of atoms or ions across the lanthanoid series.