Glenda Harris, 33 years old
So why is it so special? Nearby words radioautographyradiobicipitalradiobiologyradiobroadcastradiocarbonradiocarbon datingradiocarpalradiocarpal jointradiocastradiocesiumradiochemical. Compare radiometric dating. Origin of radiocarbon dating First recorded in — Also called carbon dating. The 14 C decays to the nitrogen isotope 14 N with a half-life of years. Measurement of the amount of radioactive carbon remaining in the material thus dictionary definition radiocarbon dating an estimate of its age Also called: carbon dating. A technique for measuring the age of organic remains based on the rate of decay of carbon
Related to radiocarbon dating: Potassium argon dating. A form of radiometric dating used to dictionary definition radiocarbon dating the age of organic remains in ancient objects, such as archaeological specimens, on the basis of the half-life of carbon and a comparison between the ratio of carbon to carbon in a sample of the remains to the known ratio in living organisms. Also called carbon datingcarbon dating. The 14 C decays to the nitrogen isotope 14 N with a half-life of years. Measurement of the amount of radioactive carbon remaining in the material thus gives an estimate of its age. Also called: carbon dating. A technique for measuring the age of organic remains based on the rate of decay of carbon The carbon 14 present in an organism at the time of its death decays at a steady rate, and so the age of the remains can be calculated from the amount of carbon 14 that is left.
A radioactive isotope of carbon, especially carbon See carbon 1. Also called carbon
Dictionary definition radiocarbon dating
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Radiocarbon dating also referred to as carbon dating or carbon dating is a method for determining the age of an object containing organic material by using the properties of radiocarbon , a radioactive isotope of carbon. The method was developed in the late s at the University of Chicago by Willard Libby , who received the Nobel Prize in Chemistry for his work in It is based on the fact that radiocarbon 14 C is constantly being created in the atmosphere by the interaction of cosmic rays with atmospheric nitrogen. The resulting 14 C combines with atmospheric oxygen to form radioactive carbon dioxide , which is incorporated into plants by photosynthesis ; animals then acquire 14 C by eating the plants. When the animal or plant dies, it stops exchanging carbon with its environment, and from that point onwards the amount of 14 C it contains begins to decrease as the 14 C undergoes radioactive decay.