Question: l Question 12 {1 pointl Retake question A listing specimen in equilibrium with the atmosphere contains one atom of 14C [half- life = 5 ?30

l Question 12 {1 pointl Retake question A listing specimen in

l Question 12 {1 pointl Retake question A listing specimen in equilibrium with the atmosphere contains one atom of 14C [half- life = 5 ?30 yr) for every I? x it)\" stable carbon atoms. An archeological sample of wood (cellulose, CHmOml contains 25mg of carbon. When the sample is placed inside a shielded beta counter with 86% counting efficiency, 942 counts are accumulated in one week. Assuming that the cosmic-ray flux and the Earth's atmosphere have not changed appreciably since the sample was formed, find the age of the sample. Round your answer in years to the nearest year. Take one year to be 365.25days. Ayogadro's Number =6.02x1023

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