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Calculate the number of nuclei of carbon -14 undecayed after 22,920years if the initial number of carbon - 14 atoms is 10, 000. The half- life of carbon-14 is 5730 years. |
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Answer» SOLUTION :To get the time interval in terms of half-life, n = `(t)/(T_(1/2)) = (22,920 yr)/(5730 yr) = 4` The number of NUCLEI remaining undecayed after 22,920 yeras, `N = ((1)/(2))^(n) N_(0) = ((1)/(2))^(4) XX 10,000 Rightarrow N = 625` |
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