Carbon 14 dating used determine age object Free sri lanka chat cam to cam

Carbon 14 dating used determine age object

So, we start out with two isotopes of uranium that are unstable and radioactive.

Carbon-14 combines with oxygen to create carbon dioxide.With rubidium-strontium dating, we see that rubidium-87 decays into strontium-87 with a half-life of 50 billion years.By anyone's standards, 50 billion years is a long time.Because plants use carbon dioxide for photosynthesis, this isotope ends up inside the plant, and because animals eat plants, they get some as well.When a plant or an animal dies, it stops taking in carbon-14.

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With radiocarbon dating, the amount of the radioactive isotope carbon-14 is measured.

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