State whether the following statement is true or false:
Each isotope of an element is an impure substance.
Each isotope of an element is an impure substance.
(FALSE) False.
An isotope of an element consists of atoms that have the same number of protons but a different number of neutrons. Since all atoms in a sample of a pure isotope have the same atomic number and the same chemical properties,it is considered a pure substance. Isotopes are different forms of the same element,not impurities.
An isotope of an element consists of atoms that have the same number of protons but a different number of neutrons. Since all atoms in a sample of a pure isotope have the same atomic number and the same chemical properties,it is considered a pure substance. Isotopes are different forms of the same element,not impurities.
Explore More
Similar Questions
$(i)$ Write the postulates of the Bohr model of an atom.
$(ii)$ Draw a sketch of the Bohr model of an atom with atomic number $15$.
$(ii)$ Draw a sketch of the Bohr model of an atom with atomic number $15$.
Easy
View Solution$(a)$ Which of the following electronic configurations are not possible? Give reasons.
$(i)$ $X: 2, 8, 4$
$(ii)$ $Y: 3, 8, 2$
$(iii)$ $Z: 2, 8, 9$
$(b)$ Write electronic configurations of the following elements and predict their valencies:
Fluorine: $9$,Aluminium: $13$,Argon: $18$
$(i)$ $X: 2, 8, 4$
$(ii)$ $Y: 3, 8, 2$
$(iii)$ $Z: 2, 8, 9$
$(b)$ Write electronic configurations of the following elements and predict their valencies:
Fluorine: $9$,Aluminium: $13$,Argon: $18$
Medium
View Solution$A, B$ and $C$ are three metals with atomic numbers $4, 11$ and $13$ respectively. Arrange the metals in the increasing order of their valency.
Medium
View SolutionIn what way is the Rutherford's atomic model different from that of Thomson's atomic model?
Medium
View Solution$(a)$ Write two drawbacks of Rutherford's model of an atom.
$(b)$ State Bohr's postulates to overcome the drawbacks of Rutherford's model.
$(b)$ State Bohr's postulates to overcome the drawbacks of Rutherford's model.
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