Oxygen-17 and oxygen-18 _____.

Question

have different numbers of protons

are isotopes of oxygen

have the same mass

Answer 1

belong to the same element

Answer 2

are you sure

Answer 3

My apologies for the incorrect response. Oxygen-17 and oxygen-18 are isotopes of oxygen. Isotopes are atoms of the same element that have different numbers of neutrons and therefore different atomic masses. Oxygen-17 has 8 protons and 9 neutrons, while oxygen-18 has 8 protons and 10 neutrons. Thank you for pointing that out.