Radioactive carbon dating origin of life
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Radiocarbon dating is a method for determining the age of an object containing In, Martin Kamen and Samuel Ruben of the Radiation that the atom's half-life was far longer than had been previously thought. Radio carbon dating determines the age of ancient objects by means of For instance, if atoms in the year had a half-life of ten years, then in . To detect the age of a fossil or artifact, the ratio of carbon 14 to carbon 12 can be calculated. which have an unstable nucleus, meaning they will undergo radioactive decay. How can half-life be described in terms of radioactive decay? Carbon, or radiocarbon, is a naturally occurring radioactive Carbon has a half-life of 5, ± 40 years, meaning that every 5, years.
But for humans whose life span rarely reaches more than years, how can we be so sure of that ancient date? Certain isotopes are unstable and undergo a process of radioactive decay, slowly and steadily transforming, molecule by molecule, into a different isotope. This rate of decay is constant for a given isotope, and the time it takes for one-half of a particular isotope to decay is its radioactive half-life.
Using this technique, called radiometric dating, scientists are able to "see" back in time.
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