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Radiocarbon dating has also been used to date the extinction of the woolly mammoth and contributed to the debate over whether modern humans and Neanderthals met. Carbon is an unstable isotope of carbon that will eventually decay at a known rate to become carbon And this is actually called a half life. Like we had for nitrogen, we had seven protons. For example, two samples taken from the tombs of two Egyptian kings, Zoser and Sneferuindependently dated to BC plus or minus 75 years, were dated by radiocarbon measurement to an average of BC plus or minus years.

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It's just a little section of the surface of the Earth.

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How is carbon dating done?

Imagine a large swimming pool into which one drop of red ink falls each year. Plants and animals assimilate carbon 14 from carbon dioxide throughout their lifetimes. Carbon 14 dating 2. So carbon by definition has six protons, but the typical isotope, the most common isotope of carbon is carbon A detailed description of radiocarbon dating is available at the Wikipedia radiocarbon dating web page.

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