Radioactive isotopes can be artificial.Logical formLearned from9 sentences. Stable isotopes may undergo an analysis.Logical formLearned from9 sentences. A stable isotope can be constituted-of-or-filled-with hydrogen.Logical formLearned from9 sentences. Some isotopes can be constituted-of-or-filled-with uranium.Logical formLearned from9 sentences. Stable isotopes can be constituted-of-or-filled-with nitrogen.Logical formLearned from9 sentences. A (research reactor) may make isotopes.Logical formLearned from9 sentences. Isotopes may be used in (cancer treatment).Logical formLearned from9 sentences. A (research reactor) may produce (radio isotopes).Logical formLearned from9 sentences. A (research reactor) may produce medical isotopes.Logical formLearned from9 sentences. A dose may pertain-to an (isotope polonium-210).Logical formLearned from9 sentences. An (isotope separation) can be magnetic.Logical formLearned from9 sentences. An isotope may split in a (chain reaction).Logical formLearned from9 sentences. Fissile isotopes may undergo concentration.Logical formLearned from8 sentences. Relative abundances may pertain-to isotopes.Logical formLearned from8 sentences. Isotopes can be constituted-of-or-filled-with iron.Logical formLearned from8 sentences.