Question: what is the difference between atoms of oxygen-16 and oxygen-17?
Answer: Isotopes are elements that contain the same amount of protons, but differ in the number of neutrons in their nuclei. ... Therefore, oxygen 16 has 8 protons and 8 neutrons, oxygen 17 has 8 protons and 9 neutrons, and oxygen 18 has 8 protons and 10 neutrons.