O-18 has an atomic number of 8. Which of the following shows the correct number of protons, electrons, and neutrons, respectively, in a neutral oxygen atom?
1) 8 protons, 8 electrons, 10 neutrons
2) 8 protons, 10 electrons, 8 neutrons
3) 10 protons, 8 electrons, 8 neutrons
4) 10 protons, 8 electrons, 10 neutrons