(Oxygen isotopes) may undergo an analysis.Logical formLearned from5 sentences. (Carbon isotopes) may undergo an analysis.Logical formLearned from5 sentences. A radioactive isotope can be constituted-of-or-filled-with aluminum.Logical formLearned from5 sentences. Atoms can be constituted-of-or-filled-with some isotopes.Logical formLearned from5 sentences. An isotope can be constituted-of-or-filled-with argon.Logical formLearned from5 sentences. Isotopes can be constituted-of-or-filled-with argon.Logical formLearned from5 sentences. A table may pertain-to isotopes.Logical formLearned from5 sentences. Isotopes can be a tool.Logical formLearned from5 sentences. A combination can be constituted-of-or-filled-with stable isotope.Logical formLearned from5 sentences. A process may enable a separation of an isotope.Logical formLearned from5 sentences. (Isotope ratios) may undergo an analysis.Logical formLearned from5 sentences. A radioactive isotope can be constituted-of-or-filled-with potassium.Logical formLearned from5 sentences. Isotopes may undergo an enrichment.Logical formLearned from5 sentences. Isotopes can be constituted-of-or-filled-with atoms.Logical formLearned from5 sentences. Isotopes can be constituted-of-or-filled-with (carbon dioxide).Logical formLearned from5 sentences.