Medium
Electronic configuration of $H^{-}$ is
- A$1s^0$
- B$1s^1$
- C$1s^2$
- D$1s^1, 2s^1$
Explore More
Similar Questions
In an atom,the total number of electrons having quantum numbers $n=4, |m_{l}|=1$ and $m_{s}=-\frac{1}{2}$ is:
The plot of $r^2 \Psi^2$ versus $r$ for $2s$ orbital of hydrogen atom exhibits :-
Medium
View SolutionThe correct set of quantum numbers for the unpaired electron of $Cu$ atom is
MediumKVPY 2020
View SolutionThe four quantum numbers for the valence shell electron of Sodium $(Z=11)$ are:
Easy
View SolutionWrite the electronic configuration of chromium $(Cr)$ and copper $(Cu)$. Give reasons for the observed configurations of $Cr$ $(Z = 24)$ and $Cu$ $(Z = 29)$.
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