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Radioisotope methods of dating

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So, if you know the radioactive isotope found in a substance and the isotope's half-life, you can calculate the age of the substance. Well, a simple explanation is that it is the time required for a quantity to fall to half of its starting value.So, you might say that the 'full-life' of a radioactive isotope ends when it has given off all of its radiation and reaches a point of being non-radioactive.Radiometric dating is used to estimate the age of rocks and other objects based on the fixed decay rate of radioactive isotopes.

This method relies on the uptake of a naturally occurring radioactive isotope of carbon, carbon-14 by all living things.Radioactive decay Radioisotopic dating relies on the process of radioactive decay, in which the nuclei of radioactive atoms emit particles.This releases energy (in the form of radiation) and often transforms one element into another.Radioactive elements were incorporated into the Earth when the Solar System formed.All rocks and minerals contain tiny amounts of these radioactive elements.In other words, the chance that a given atom will decay is constant over time.