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    Radioactive and radiocarbon dating

    The method was developed by Willard Libby in the late 1940s and soon became a standard tool for archaeologists.

    Libby received the Nobel Prize in Chemistry for his work in 1960.

    Isotopes: The number of neutrons in the nucleus of an atom of a specific element can vary.

    For example, carbon, which normally has 6 protons and 6 neutrons, also has versions that have 7 neutrons or 8 neutrons in the nucleus.

    Research has been ongoing since the 1960s to determine what the proportion of in the atmosphere has been over the past fifty thousand years.

    The resulting data, in the form of a calibration curve, is now used to convert a given measurement of radiocarbon in a sample into an estimate of the sample's calendar age.

    He serves as Answers in Genesis’ Director of Research and is the Editor-in-Chief of the online Answers Research Journal. Snelling is active in research and writes and also speaks on topics such as the Flood, fossils, and the Grand Canyon.Carbon 14 is continually being created in the Earth's atmosphere by the interaction of nitrogen and gamma rays from outer space.Since atmospheric carbon 14 arises at about the same rate that the atom decays, the Earth's levels of carbon 14 have remained constant.The following table shows the three common isotopes of carbon: There is a great deal of other information in the diagram above.Isotopes are named with a combination of their element symbol and their mass (e.g., carbon-12, carbon-13, etc.).

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