. On the periodic table, the atomic mass of oxygen is listed as 15.9994 amu.. Based on this, one can deduce that the most common ____________ of oxygen contains a sum of _____ protons and neutrons added together.. A). ion, 32. B). isotope, 16. C). molecule, 8. D). atom, 15.9994
The periodic table shows only data about the most common isotopes of the elements, and the atomic mass is the sum of protons and neutrons. Other oxygen isotopes would have different masses
