Question

4. Define the following terms:

(d) Molecule

Answer 1

• A molecule is defined as the smallest unit of matter, which has an independent existence and can retain the complete physical and chemical properties of matter.
• Molecules are a group of one or more atoms joined together chemically.
• For example, two atoms of hydrogen$\left(\mathrm{H}\right)$ join together to form a molecule of hydrogen$\left({\mathrm{H}}_2\right)$.