Easy
The electronic configuration $1s^{2}\, 2s^{2}\, 2p^{5}\, 3s^{1}$ represents:
- AGround state of fluorine atom
- BExcited state of fluorine atom
- CExcited state of neon atom
- DExcited state of $O^{2-}$ ion
Explore More
Similar Questions
How many unpaired electrons are present in the $Ni^{2+}$ cation (atomic number $= 28$)?
The spin of the electron:
Medium
View SolutionAccording to the Aufbau principle,which orbital is filled with electrons immediately after the $5f$ orbital?
Difficult
View SolutionAn electron has a magnetic quantum number of $-3$. Its principal quantum number can be
Medium
View SolutionIf $n$ and $l$ represent the principal and azimuthal quantum numbers respectively, the formula used to determine the number of radial nodes possible for a given orbital is:
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