o-18, an isotope of oxygen, has a stable nucleus. o-19, another isotope of oxygen, does not have a stable…

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 o-19 is radioactive; o-18 is not radioactive. o o-19 has a mass defect; o-18 does not have a mass defect. o o-19 has a nuclear binding energy; o-18 does not have a nuclear binding energy. o o-19 has more neutrons than protons; o-18 has equal numbers of neutrons and protons.
Answer
Brief Explanations:
Unstable nuclei are radioactive. Since O - 19 has an unstable nucleus and O - 18 has a stable nucleus, O - 19 is radioactive and O - 18 is not. All atomic nuclei have mass defect and nuclear binding energy. For oxygen, the atomic number is 8 (8 protons). O - 18 has 10 neutrons and O - 19 has 11 neutrons, and neither has equal numbers of neutrons and protons in the way stated.
Answer:
O-19 is radioactive; O-18 is not radioactive.