Isotopes can be synthetic.Logical formLearned from7 sentences. Isotopes may undergo an abundance.Logical formLearned from7 sentences. A half-life may pertain-to an isotope.Logical formLearned from7 sentences. An isotope can be dominant.Logical formLearned from7 sentences. Isotopes can be constituted-of-or-filled-with helium.Logical formLearned from7 sentences. Work may illustrate a value of a study of isotopes.Logical formLearned from7 sentences. (Gas isotopes) can be noble.Logical formLearned from7 sentences. Isotopes can be for use.Logical formLearned from7 sentences. (Hydrogen isotopes) can be stable.Logical formLearned from7 sentences. A (carbon isotope analysis) can be stable.Logical formLearned from7 sentences. Isotopes can be radioactive.Logical formLearned from7 sentences. Stable isotopes may undergo analyes.Logical formLearned from7 sentences. Isotopes may undergo a detection.Logical formLearned from7 sentences. (Cesium isotopes) can be radioactive.Logical formLearned from7 sentences. Isotopes can be stable.Logical formLearned from7 sentences.