Concentration of an isotope may be found.Logical formLearned from3 sentences. A charge may depict a quantity of radioactive isotope.Logical formLearned from3 sentences. A (calibration isotope) may be attached.Logical formLearned from3 sentences. An isotope can be constituted-of-or-filled-with aluminum.Logical formLearned from3 sentences. An isotope may undergo an administration.Logical formLearned from3 sentences. An (isotope depletion) can be heavy.Logical formLearned from3 sentences. Isotopes can be in (drug studies).Logical formLearned from3 sentences. Isotopes may undergo observations.Logical formLearned from3 sentences. Levels can be constituted-of-or-filled-with (carbon isotopes).Logical formLearned from3 sentences. Uranium may be enriched in isotopes.Logical formLearned from3 sentences. An (uranium isotope) may generate an actinide.Logical formLearned from3 sentences. Isotopes can be constituted-of-or-filled-with transuranic elements.Logical formLearned from3 sentences. A nuclear fuel may be incubated into an (uranium isotope).Logical formLearned from3 sentences. An element may have some isotopes.Logical formLearned from3 sentences. An isotope may make.Logical formLearned from3 sentences.