What is Half-Life?
Carbon is a radioactive isotope of carbon it has two extra neutrons in its nucleus making it unstable. South Tyrol Museum of Archaeology. There's a small amount of radioactive carbon in all living organisms. When they die no new carbon is taken in by the dead organism. The carbon it contained at the time of death decays over a long period of time. By measuring the amount of carbon left in dead organic material the approximate time since it died can be uow out. For example, intwo hikers discovered a mummified man, preserved for centuries in the ice on an alpine mountain.
Some rocks contain traces of uranium. Uranium has radiometrkc very long half-life and so by measuring how much uranium is lievs in a rock its approximate age can be worked out. Back to Radiation for life index. You're using radiommetric Internet Explorer 6 browser to view the BBC website. Our site will work much better if you change to a more modern browser. It's free, quick and easy. Find out more about upgrading your browser here….
Continue Find out more. British Broadcasting Now Home Accessibility links Skip to content Skip to local navigation Skip to bbc. This page has been archived and is no longer updated. Find out more about page archiving. BBC Radio 1 BBC 1Xtra. Print How are half lives used in radiometric dating Uses of wre. Radioactive livfs Carbon dating Carbon is a radioactive isotope of carbon it has two extra neutrons in its nucleus making it unstable.
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