Class 11ChemistryClassification of Elements and Periodicity in PropertiesExtended or long form of periodic table
EasyAn element with atomic number $20$ will be placed in which period of the periodic table?
- A$4$
- B$3$
- C$2$
- D$1$
Explore More
Similar Questions
Based on the provided periodic table segment,calculate the atomic numbers of $A$ and $B$ respectively.
Difficult
View SolutionWhich of the following elements belongs to the $1^{st}$ group and $5^{th}$ period of the periodic table?
If an atom has electronic configuration $1s^2 2s^2 2p^6 3s^2 3p^6 3d^3 4s^2$,it will be placed in
Where is helium placed in the periodic table and why?
Easy
View SolutionAn element has $[Ar] 3d^1$ configuration in its $+2$ oxidation state. Its position in the periodic table 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