![Illustration of the Element oxygen.](http://static.sciencelearn.org.nz/images/images/000/003/819/full/IYPT_ART_01_Oxygen_Card_v2.jpg?1674172157)
On the periodic table of elements, oxygen is represented by the symbol O. It has an atomic number of 8 because it has 8 protons in its nucleus.
On the periodic table of elements, oxygen is represented by the symbol O. It has an atomic number of 8 because it has 8 protons in its nucleus.