0-18, an isotope of oxygen, has a stable nucleus. 0-19, another isotope of oxygen, does not have a stable nucleus. Based on
this information, which statement is correct?
O
O
O
O
0-19 is radioactive; 0-18 is not radioactive.
0-19 has a mass defect; 0-18 does not have a mass defect.
0-19 has a nuclear binding energy; 0-18 does not have a nuclear binding energy.
0-19 has more neutrons than protons; 0-18 has equal numbers of neutrons and protons.