The amount of radioactive carbon-14 in a sample is measured using a Geiger counter, which records each disintegration of an atom

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The amount of radioactive carbon-14 in a sample is measured using a Geiger counter, which records each disintegration of an atom

. Living tissue disintegrates at a rate of about 13.5 atoms per minute per gram of carbon. In 1977 a charcoal fragment found at Stonehenge, England, recorded 8.2 disintegrations per minute per gram of carbon. Assuming that the half-life of carbon14 is 5730 years and that the charcoal was formed during the building of the site, estimate the date when Stonehenge was built

Chemistry