The number of $f$-electrons in the $+3$ oxidation state of gadolinium $(Z=64)$ is $x$ and in the $+2$ oxidation state of ytterbium $(Z=70)$ is $y$. The sum of $x$ and $y$ is:
- A$13$
- B$20$
- C$18$
- D$21$
Explore More
Similar Questions
Which lanthanoid from the following may exhibit $+4$ oxidation state with $f^{0}$ configuration?
Assertion : Europium $(II)$ is more stable than cerium $(II)$.
Reason : Cerium salts are used as catalyst in petroleum cracking.
Reason : Cerium salts are used as catalyst in petroleum cracking.
MediumAIIMS 2010
View SolutionWhich of the following elements are analogous to the lanthanides?
MediumAIIMS 1998
View SolutionThe lanthanoid that would show color is
Most common oxidation states of $Ce$ are
Vedclass 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