Carbon dating , also called radiocarbon dating , method of age determination that depends upon the decay to nitrogen of radiocarbon carbon Radiocarbon present in molecules of atmospheric carbon dioxide enters the biological carbon cycle : it is absorbed from the air by green plants and then passed on to animals through the food chain. Radiocarbon decays slowly in a living organism, and the amount lost is continually replenished as long as the organism takes in air or food. Once the organism dies, however, it ceases to absorb carbon, so that the amount of the radiocarbon in its tissues steadily decreases. Because carbon decays at this constant rate, an estimate of the date at which an organism died can be made by measuring the amount of its residual radiocarbon.
radiocarbon dating in a sentence | Sentence examples by Cambridge Dictionary
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Radioactive dating in a sentence
Sentences Mobile They are the primary source of radiogenic heat and radioactive decay products. I've proposed that Radioactivity and Radioactive decay be merged somehow or other. During the process of radioactive decay , a beta particle will be released. Package radioactive decay usually causes a soft error by alpha particle emission. Silicon also occurs naturally as the result of radioactive decay of actinides.
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