Actinoid contraction is greater from element to element than lanthanoid contraction. Why?
(N/A) In actinoids,$5f$ orbitals are filled. These $5f$ orbitals have a poorer shielding effect than $4f$ orbitals (in lanthanoids).
Thus,the effective nuclear charge experienced by electrons in valence shells in the case of actinoids is much greater than that experienced by lanthanoids.
Hence,the size contraction in actinoids is greater as compared to that in lanthanoids.
Thus,the effective nuclear charge experienced by electrons in valence shells in the case of actinoids is much greater than that experienced by lanthanoids.
Hence,the size contraction in actinoids is greater as compared to that in lanthanoids.
Explore More
Similar Questions
Which of the following statements is $NOT$ incorrect?
Medium
View SolutionDetermine whether the following statements are True $(T)$ or False $(F)$:
$(a)$ All actinoid elements have a $7s^1$ configuration.
$(b)$ All actinoid elements have a $7s^0$ configuration.
$(c)$ There are no electrons in the $7s$ orbital of actinoids.
$(a)$ All actinoid elements have a $7s^1$ configuration.
$(b)$ All actinoid elements have a $7s^0$ configuration.
$(c)$ There are no electrons in the $7s$ orbital of actinoids.
Difficult
View SolutionIdentify the lanthanoid element from the following.
Which of the following compounds is used in gas lighters?
The correct order of ionic radii of $Ce$,$La$,$Pm$ and $Yb$ in $+3$ oxidation state is
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo