How many atoms of oxygen are present in an ozone molecule?

An ozone molecule is made up of three oxygen atoms. This is represented by its chemical formula, O₃. Ozone plays a significant role in the Earth's atmosphere, particularly in the stratosphere where it forms the ozone layer, which protects the planet from harmful ultraviolet (UV) radiation.

Ozone consists of three oxygen atoms bonded together, differing from diatomic oxygen (O₂), which is the form most commonly found in the atmosphere and contains only two oxygen atoms. The unique structure of ozone, with its three atoms, leads to its distinct properties and its vital role in atmospheric chemistry.