Question
Chemistry Question on Periodic Table
Reason of lanthanoid contraction is:
A
Increasing nuclear charge
B
Decreasing nuclear charge
C
Decreasing screening effect
D
Negligible screening effect of 'f' orbitals
Answer
Negligible screening effect of 'f' orbitals
Explanation
Solution
The correct option (D): Negligible screening effect of 'f' orbitals.