Can you please help me with atoms?

Oxygen-16 and Oxygen-17 are isotopes(what are isotopes what do they do)of oxygen.The number 16 and 17 represent their m numbers respectively .if the element oxygen has an atomic number of 8 how many protons and neutrons are in these two isotopes. can you give me the answer and explain how u got the answer i thought it was 8 and 9 for oxygen 16 plezeeeeeeeeee help me