The atomic number of an element corresponds to the number of protons in the nucleus of an atom. For oxygen, the atomic number is 8.
The atomic number of oxygen is 8. To find the atomic number of an element, you can refer to the periodic table of elements. Each element has a unique atomic number, which represents the number of protons in the nucleus of an atom of that element. In the case of oxygen, you can locate the element in the periodic table and find its atomic number, which is generally listed above or below the element's symbol.
