Radioactive isotope used for age dating

Others include Technetium 99-m being used in medicine and Phosphorus 32 being used to label small molecules in molecular biology experiments.The half life of an isotope refers to the rate at which a radioactive isotope undergoes radioactive decay.

Our editors will review what you’ve submitted and determine whether to revise the article.Join Britannica's Publishing Partner Program and our community of experts to gain a global audience for your work!isotope is converted into another specific atom or isotope at a constant and known rate.Because isotopes differ in mass, their relative abundance can be determined if the masses are separated in a mass spectrometer ( Radioactive decay can be observed in the laboratory by either of two means: (1) a radiation counter (e.g., a Geiger counter), which detects the number of high-energy particles emitted by the disintegration of radioactive atoms in a sample of geologic material, or (2) a parent atoms.The particles given off during the decay process are part of a profound fundamental change in the nucleus.

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