How Does Carbon Dating Work Carbon-14 is a weakly radioactive isotope of Carbon; also known as radiocarbon, it is an isotopic chronometer. C-14 dating is only applicable to organic and some inorganic materials not applicable to metals. Gas proportional counting, liquid scintillation counting and accelerator mass spectrometry are the three principal radiocarbon dating methods. Dating Methods using Radioactive Isotopes Oliver Seely Radiocarbon method The age of ancient artifacts which contain carbon can be determined by a method known as radiocarbon dating. This method is sometimes called C-14 or carbon-14 dating. Carbon-14 is formed in the upper atmosphere by the bombardment of nitrogen-14 by cosmic rays. Cosmic rays are protons, particles and some heavier ions. Other particles, including neutrons, are produced by subsequent collisions.

#### radioactive isotopes uses

Radiocarbon Dating Counting carbon 14 atoms in a bygone object to find its age The most common of the radioactive dating techniques currently in use involves the isotope 14 of carbon, the radiocarbon. This radioactive isotope of carbon is present in the atmosphere in trace amounts, and in chemical processes is indistinguishable from normal carbon 12.

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