Half lives used carbon dating fossils rocks

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It takes another 5,730 for half of the remainder to decay, and then another 5,730 for half of what's left then to decay and so on.

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It takes about 5,730 years for half of a sample of radiocarbon to decay back into nitrogen. This is how carbon dating works: Carbon is a naturally abundant element found in the atmosphere, in the earth, in the oceans, and in every living creature.C-12 is by far the most common isotope, while only about one in a trillion carbon atoms is C-14.Carbon dating is used to determine the age of biological artifacts up to 50,000 years old.This technique is widely used on recent artifacts, but educators and students alike should note that this technique will not work on older fossils (like those of the dinosaurs alleged to be millions of years old).

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