Carbon fourteen dating

There is also the likelihood of the sample being contaminated with old or new carbon.For example, logs of woods cut from different trees were burnt in a fireplace.

Hence, it would not be possible to determine the age of a sample accurately.Carbon-14 is radioactive, and has a half life of about 5700 years.Plants get their share of carbon atoms from the atmosphere. It is seen that at any given point of time, the ratio of stable carbon and radiocarbon in the atmosphere, is almost same as the ratio of stable carbon and radiocarbon in living organisms like plants, animals, and humans.When a living organism dies, its carbon intake ceases.From that point onwards, the unstable carbon-14 decays with its half life of almost 5700 years, and the amount of carbon-12 remains the same.

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