State the reason for the stability of the $Gd^{3+}$ ion.
- A$4f$ orbital is completely filled.
- B$4f$ orbital is half-filled.
- CIt has a noble gas electron configuration.
- D$4f$ orbital is completely empty.
Explore More
Similar Questions
Which of the following metals make the most efficient catalyst?
Easy
View SolutionFour successive members of the first row transition elements are listed below with their atomic numbers. Which one of them is expected to have the highest $E^{o}_{M^{3+} / M^{2+}}$ value?
Which of the following metal ions will have the maximum number of unpaired electrons?
Easy
View SolutionIn the $3d$ series of transition elements,the atomic radius of $Zn$ increases instead of decreasing because...
Easy
View SolutionWhich of the following represents the correct order of density for the given $3d$ series elements?
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