Class 11ChemistryClassification of Elements and Periodicity in PropertiesExtended or long form of periodic table
EasyWhat is the number of elements in periods $1$ to $7$ of the periodic table?
(N/A) The number of elements in each period is determined by the filling of orbitals $(ns, (n-2)f, (n-1)d, np)$. The distribution is as follows:
| Period | Number of Elements |
| $1$ | $2$ |
| $2$ | $8$ |
| $3$ | $8$ |
| $4$ | $18$ |
| $5$ | $18$ |
| $6$ | $32$ |
| $7$ | $32$ (Incomplete) |
Explore More
Similar Questions
The atomic number of the element unnilennium is
Which one of the following belongs to the representative group of elements in the periodic table?
Easy
View SolutionWhich elements are considered exceptions in the classification of the periodic table?
Difficult
View SolutionHow is the name of an element with an atomic number greater than $100$ assigned?
Medium
View SolutionDetermine the position of the element in the periodic table for the following outer electronic configurations:
$(i)$ $ns^2 np^4$ where $n = 3$
$(ii)$ $(n-1)d^2 ns^2$ where $n = 4$
$(iii)$ $(n-2)f^7 (n-1)d^1 ns^2$ where $n = 6$
$(i)$ $ns^2 np^4$ where $n = 3$
$(ii)$ $(n-1)d^2 ns^2$ where $n = 4$
$(iii)$ $(n-2)f^7 (n-1)d^1 ns^2$ where $n = 6$
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