Here's a breakdown:
* Ozone is a specific form of oxygen, also known as an allotrope.
* Allotropes are different structural forms of the same element.
* Oxygen (O2) is the most common form of oxygen, consisting of two oxygen atoms bonded together.
* Ozone (O3) has three oxygen atoms bonded together, forming a bent molecule.
The molecular formula reflects the number and type of atoms in a molecule. Since ozone has three oxygen atoms, its formula is O3.