Radioactive dating game

A particular isotope of a particular element is called a nuclide. That is, at some point in time, an atom of such a nuclide will undergo radioactive decay and spontaneously transform into a different nuclide.This transformation may be accomplished in a number of different ways, including alpha decay (emission of alpha particles) and beta decay (electron emission, positron emission, or electron capture).For instance, if an object has 50 percent of its decay product, it has been through one half-life.A popular way to determine the ages of biological substances no more than 50,000 years old is to measure the decay of carbon-14 into nitrogen-14.

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Together with stratigraphic principles, radiometric dating methods are used in geochronology to establish the geologic time scale.

For biological objects older than 50,000 years, scientists use radioactive dating to determine the age of rocks surrounding where the material was found.

By dating rocks, scientists can approximate ages of very old fossils, bones and teeth.

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