O-18, an isotope of oxygen, has a stable nucleus. o-19, another isotope of oxygen, does not have a stable nucleus. based on this information, which statement is correct?
o-19 is radioactive; o-18 is not radioactive.
o-19 has a mass defect; o-18 does not have a mass defect.
o-19 has a nuclear binding energy; o-18 does not have a nuclear binding energy.
o-19 has more neutrons than protons; o-18 has equal numbers of neutrons and protons