im not sure if it is a molecule or an atom
![im not sure if it is a molecule or an atom class=](https://us-static.z-dn.net/files/d82/01a8e1f0078f120b8c50bd3decf31d42.jpg)
Only the 2nd answer is right, uncheck the 1st one
Explanation:
If we had a chemical formula like [tex]3(O_{2} )[/tex] the 3 means there are 3 molecules of [tex]O_{2}[/tex]. The 2 means there are two atoms of oxygen in each molecule.