Define carbon 14 dating

Then the radiocarbon dating measures remaining radioactivity.By knowing how much carbon-14 is left in a sample, the age of the organism and when it died can be worked out.Carbon dating was used routinely from the 1950s onward, and it confirmed the age of these historical remains.Radiocarbon dating is a method used to date materials that once exchanged carbon dioxide with the atmosphere; in other words, things that were living.

Anyone can earn credit-by-exam regardless of age or education level.Atmospheric carbon-14 rapidly reacts with oxygen in air to form carbon dioxide and enters the carbon cycle.Plants take in carbon dioxide through photosynthesis and the carbon-14 makes its way up the food chain and into all living organisms.It is often used on valuable artwork to confirm authenticity.For example, look at this image of the opening of King Tutankhamen's tomb near Luxor, Egypt during the 1920s.

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