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    • Graph of a radioactive decay curve for carbon-14.
    Rights: The University of Waikato Te Whare Wānanga o Waikato Published 17 September 2009, Updated 18 October 2022 Size: 670 KB Referencing Hub media

    The graph shows a radioactive decay curve for carbon-14. A plot of the activity of the sample versus time shows that the half-life for carbon-14 is 5,730 years.

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      ACTIVITY

      Radioactive decay

      In this activity, students model the radioactive decay process for carbon-14 by flipping coins. Each coin represents a carbon-14 atom, and if it lands tails up when flipped, this indicates ...

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      2. ARTICLE

      Carbon-14 dating artefacts

      Associate Professor Fiona Petchey is using carbon-14 (C-14) to date artefacts of historical importance excavated from the Wairau Bar archaeological site in Blenheim. However, pre-1950 samples ...

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      3. ARTICLE

      Radiocarbon calibration curves

      Radiocarbon dating, also known as carbon-14 dating, is one of several methods referred to as absolute dating – but here’s an interesting fact. There is nothing ‘absolute’ about a radiocarbon ...

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