Give three differences between an atom and a molecule.

Vedclass pdf generator app on play store
Vedclass iOS app on app store
(N/A)
Atom Molecule
$(i)$ An atom is the smallest particle of an element that takes part in a chemical reaction. $(i)$ $A$ molecule is the smallest particle of an element or a compound that is capable of independent existence.
$(ii)$ An atom is usually not stable by itself. $(ii)$ $A$ molecule is usually stable by itself.
$(iii)$ Similar atoms can combine in varying numbers to form different molecules with different properties. e.g.,$O_2$ and $O_3$. $(iii)$ When similar molecules combine in any number,the nature of the substance remains the same. e.g.,$5$ water molecules combined with $50$ water molecules still represent water.

Explore More

Similar Questions

Calculate the number of atoms in $0.02$ mole of carbon.

State the law of constant proportions.

Which of the following symbols of elements are incorrect? Give their correct symbols:
$(a)$ Cobalt $CO$
$(b)$ Carbon $c$
$(c)$ Aluminium $AL$
$(d)$ Helium $He$
$(e)$ Sodium $So$

Calculate the number of moles of magnesium present in a magnesium ribbon weighing $12 \, g$. The molar atomic mass of magnesium is $24 \, g \, mol^{-1}$. (in $, mol$)

Verify by calculating that:
$(a)$ $5 \, mol$ of $CO_2$ and $5 \, mol$ of $H_2O$ do not have the same mass.
$(b)$ $240 \, g$ of calcium and $240 \, g$ of magnesium elements have a mole ratio of $3:5$.

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo