## Which carbon isotope is used for radiocarbon dating

After 5, years, the amount of carbon 14 left in the body is half of the original amount. Experts can compare the ratio of carbon 12 to carbon 14 in dead material to the ratio when the organism was alive to estimate the date of its death. When an organism dies it ceases to replenish carbon in its tissues and the decay of carbon 14 to nitrogen 14 changes the ratio of carbon 12 to carbon In the event of a H. When finding the age of an organic organism we need to consider the half-life of carbon 14 as well as the rate of decay, which is —0. In the case of radiocarbon dating, the half-life of carbon 14 is 5, years.