- Sodium (Na): Sodium is a metal that is highly reactive and forms the base compound of liquid bleach.

- Chlorine (Cl): Chlorine is a halogen gas that is highly reactive and is the active ingredient in bleach. When dissolved in water, chlorine forms hypochlorous acid, which is the main bleaching agent.

- Oxygen (O): Oxygen is a non-metallic gas that is present in the hypochlorous acid molecule and is essential for the bleaching process.

- Hydrogen (H): Hydrogen is a non-metallic gas that is present in the hypochlorous acid molecule and is essential for the bleaching process.