What can be concluded about the atom from knowing that oxygen-18 has an atomic number of 8? a) an oxygen atom that includes 8 baryons, 9 prions, and 10 neutrons. b) this oxygen isotope contains 8 electrons, 8 protons, and 10 neutrons. c) it's an oxygen allotrope incorporates 7 electrons, 7 protons, and 7 quarks. d) the oxygen configuration consists of 6 electrons, 8 photons, and 10 neutrons.