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Which radioactive isotope is used in biological dating

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Radioactive isotopes become more stable through nuclear reactions including alpha decay and beta decay. An isotope is something that well, you call something an isotope, if it's got the same number of protons but a different number of neutrons.One example of a radioactive isotope is Carbon-14 which is used for carbon dating. So we've got same number of protons, different number of neutrons.

— Research has identified, for the first time, how global warming is related to the amount of carbon emitted.For organic materials, the comparison is between the current ratio of a radioactive isotope to a stable isotope of the same element and the known ratio of the two isotopes in living organisms.Radiocarbon dating is one such type of radiometric dating.But soon these discarded discs could take on a different role: ...Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. 1979, 1986 © Harper Collins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Cite This Source (rā'dē-ō-mět'rĭk) A method for determining the age of an object based on the concentration of a particular radioactive isotope contained within it.Strata are differentiated from each other by their different colors or compositions and are exposed in cliffs, quarries, and river banks.