(from the article `dating`) ...of radioactive atoms in a sample of geologic material, or (2) a mass spectrometer, which permits the identification of daughter atoms formed by ...
An element that undergoes nuclear decay.
A radioactive isotope that changes into a different isotope when its nucleus decays. See also daughter isotope.
An element that undergoes nuclear decay.
An element that undergoes nuclear decay. See also: Daughter Isotope, Isotopes.