An isotope may be used.Logical formLearned from10 sentences. Isotopes can be selected.Logical formLearned from10 sentences. Isotopes may undergo concentrations.Logical formLearned from10 sentences. Isotopes may undergo a discovery.Logical formLearned from10 sentences. A radioactive isotope may kill a male.Logical formLearned from10 sentences. A (research reactor) may make isotopes.Logical formLearned from10 sentences. A shortage can be constituted-of-or-filled-with radioactive isotopes.Logical formLearned from10 sentences. A reactor may run on an isotope of hydrogen.Logical formLearned from10 sentences. Some radioactive isotope may be used in medicine.Logical formLearned from10 sentences. A facility may produce medical isotopes.Logical formLearned from10 sentences. A reactor may produce isotopes.Logical formLearned from10 sentences. A radioactive isotope can be constituted-of-or-filled-with iodine.Logical formLearned from10 sentences. A radioactive isotope can be polonium-210.Logical formLearned from9 sentences. (Fusion reactions) may produce isotopes.Logical formLearned from9 sentences. Reactions may produce isotopes.Logical formLearned from9 sentences.