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Posted: Fri May 06, 2022 12:23 pm
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5. In radiocarbon dating the relative abundance of Carbon-14 is living organisms is compared to the abundance of Carbon-14 in organic material long dead. For example the age of a piece of charcoal from a prehistoric fireplace is made from wood long dead. Since the intake of Carbon ceases when the organism dies, a comparison of the activity of a prehistoric sample is made with a modem sample. Modern samples of pure carbon yield activities of 16 decays per minute for each gram of carbon. Suppose that you take a piece of charcoal from an Indian pueblo in Colorado and find that the sample exhibits an activity of 0. 11 Bq per gram of carbon. What is the age (years) of this Indian site?
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