What Matter Type Is O2

Oxygen is a chemical element – a substance that contains only one type of atom. Its official chemical symbol is O, and its atomic number is 8, which means that an oxygen atom has eight protons in its nucleus. Oxygen is a gas at room temperature and has no colour, smell or taste. Oxygen is found naturally as a molecule.

What matter type is 02?

Example: Oxygen gas (O2) in a separate tank has nothing else but pure Oxygen gas that has been chemically combined. A combination of two or more substances that are not chemically combined.

Is O2 a simple substance?

The reason is that there is only one kind of atom in the elemental oxygen and in the resulting molecule that is oxygen gas. Since there are no other kinds of atoms, molecules, compounds, or substances in oxygen or oxygen gas, these substances are both considered pure substances.