State the reason for the following:
$(a)$ The elements of the same group have similar chemical properties.
$(b)$ The elements of the same period have different properties.
$(a)$ The elements of the same group have similar chemical properties.
$(b)$ The elements of the same period have different properties.
- AElements in the same group have the same number of valence electrons.
- BElements in the same group have different numbers of valence electrons.
- CElements in the same period have the same number of valence electrons.
- DElements in the same period have the same number of shells.
Explore More
Similar Questions
$(a)$ How does electropositivity of elements get affected as we move :
$(i)$ down a group
$(ii)$ across a period?
$(b)$ Which atomic property increases both as we move across a period or down a group?
$(i)$ down a group
$(ii)$ across a period?
$(b)$ Which atomic property increases both as we move across a period or down a group?
Medium
View Solution''Elements in Periodic Table show periodicity of properties.'' List any four such properties.
Easy
View SolutionWhat property do all elements in the same column of the Periodic Table as boron have in common?
Easy
View SolutionThe atomic number of $Na$ and $Mg$ is $11$ and $12$ respectively and they belong to the same period.
$(a)$ Which one would have smaller atomic size?
$(b)$ Which one would be more electropositive?
$(c)$ To which group would each one belong?
$(a)$ Which one would have smaller atomic size?
$(b)$ Which one would be more electropositive?
$(c)$ To which group would each one belong?
Medium
View SolutionAtomic radii of the elements of the second period are given below :
Period $II$ elements $B$ $Be$ $O$ $N$ $Li$ $C$ Atomic radius $(pm)$ $88$ $111$ $66$ $74$ $152$ $77$
$(i)$ Arrange them in decreasing order of their atomic radii.
$(ii)$ Are the elements now arranged in the pattern of a period in the Periodic Table?
$(iii)$ Which elements have the largest and the smallest atoms?
$(iv)$ How does the atomic radius change as you go from left to right in a period?
| Period $II$ elements | $B$ | $Be$ | $O$ | $N$ | $Li$ | $C$ |
| Atomic radius $(pm)$ | $88$ | $111$ | $66$ | $74$ | $152$ | $77$ |
$(i)$ Arrange them in decreasing order of their atomic radii.
$(ii)$ Are the elements now arranged in the pattern of a period in the Periodic Table?
$(iii)$ Which elements have the largest and the smallest atoms?
$(iv)$ How does the atomic radius change as you go from left to right in a period?
Medium
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