Question

Define a molecule. Give examples.

Answer 1

Molecules- Molecules are made up of groups of atoms having independent existence.

• Helium(He) gas is an example of a mono-atomic molecule i.e., it has one atom in its molecule and has free existence.
• Hydrogen(H₂) gas is an example of a diatomic molecule, it has two atoms in one molecule.
• Water(H₂O) is an example of a triatomic molecule having two hydrogens and one oxygen atom.
• Some molecules have a large number of atoms, as in the case of sulfur.
• A sulfur molecule is made up of 8 sulfur atoms in a ring form.