Isotopes can be for (cancer treatment).Logical formLearned from25 sentences. A half-life may pertain-to an isotope.Logical formLearned from24 sentences. An isotope may pertain-to an element.Logical formLearned from24 sentences. A (decay mode) can be before a stable isotope.Logical formLearned from23 sentences. Stable isotopes can be constituted-of-or-filled-with carbon.Logical formLearned from23 sentences. A (vapor laser isotope separation) can be atomic.Logical formLearned from22 sentences. A supply can be constituted-of-or-filled-with medical isotopes.Logical formLearned from22 sentences. A radioactive isotope can be constituted-of-or-filled-with carbon.Logical formLearned from22 sentences. An isotope can be known.Logical formLearned from21 sentences. Isotopes may pertain-to a US-city.Logical formLearned from21 sentences. A ratio may pertain-to isotopes.Logical formLearned from21 sentences. An isotope can be short-lived.Logical formLearned from21 sentences. Some isotopes can be stable.Logical formLearned from21 sentences. An isotope can be radioactive.Logical formLearned from21 sentences. Isotopes can be radioactive.Logical formLearned from20 sentences.