Triatomic molecule

Triatomic molecules are molecules composed of three atoms, of either the same or different chemical elements. Examples include H2O, CO2 (pictured), HCN, O3 (ozone) and NO2.

Extends: [Molecular vibration](https://wikipedia.org.ai/Molecular vibration), [Triatomic molecules](https://wikipedia.org.ai/Triatomic molecules)