Class 10SciencePeriodic Classification of ElementsMix Examples - Periodic Classification of Elements
EasyState 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
Which of the following sets of elements is written in the order of their increasing metallic character?
Medium
View SolutionWhich of the following is the outermost shell for elements of period $2$?
Easy
View SolutionCompare the radii of two species $X$ and $Y$. Give reasons for your answer.
$(a)$ $X$ has $12$ protons and $12$ electrons.
$(b)$ $Y$ has $12$ protons and $10$ electrons.
$(a)$ $X$ has $12$ protons and $12$ electrons.
$(b)$ $Y$ has $12$ protons and $10$ electrons.
Medium
View SolutionWhat is meant by 'group' in the modern periodic table? How do the following change on moving from top to bottom in a group?
$(i)$ Number of valence electrons
$(ii)$ Number of occupied shells
$(iii)$ Size of atoms
$(iv)$ Metallic character of elements
$(v)$ Effective nuclear charge experienced by valence electrons.
$(i)$ Number of valence electrons
$(ii)$ Number of occupied shells
$(iii)$ Size of atoms
$(iv)$ Metallic character of elements
$(v)$ Effective nuclear charge experienced by valence electrons.
Medium
View SolutionGive two reasons to explain how the metallic character of elements varies: $(a)$ in a group,$(b)$ 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