Question

Give one word or phrase for the following statement.

Molecules have two atoms of the same kind.

Answer 1

• A molecule is a group of two or more elements that are held together by chemical bonds.
• A molecule that is made from atoms of the same kind of homo atomic molecule.

Example: Oxygen molecule $\left({\mathrm{O}}_2\right)$ is consist of 2 $\mathrm{Oxygen}\mathrm{atoms}$.

• A molecule that is made from atoms of a different kind is called a hetero atomic molecule.

Example: Water molecule(${\mathrm{H}}_2\mathrm{O}$) is consist of 2 $\mathrm{Hydrogen}\mathrm{atom}$ and 1 $\mathrm{Oxygen}\mathrm{atom}$.

Thus, molecules having two atoms of the same kind are called homo atomic molecules.