Oxygen has an atomic number of 8 thus how many electrons does it have? There are 8 electrons in a single neutral oxygen atom . . The atomic numbers of oxygen is 8 , since it has 8 protons inits nucleus .
The number of electrons in an element is the same as the number of protons - that is, the elements atomic number, e.g. the atomic number of oxygen is 8 so it has 8 electrons.
