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How Does Carbon Dating Work
By measuring the 14 C concentration or residual radioactivity of a sample whose age is not known, it is possible to obtain the number of decay events per gram of Carbon. After a creature's death the isotope would slowly decay away over millennia at a fixed rate. This page was last edited on 12 Mayat Bowring; H. The carbon ends up as a trace component in atmospheric carbon dioxide CO 2. If you had an ensemble of identical particles, the probability of finding a given one of them still as they were - with no decay - after some time is given by the mathematical expression.