85. The current equilibrium concentration of 14C in the
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85. The current equilibrium concentration of 14C in the atmosphere is such that there is one 14C atom for every 8:3 1011
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85. The current equilibrium concentration of 14C in the atmosphere is such that there is one 14C atom for every 8:3 1011 12C atoms and the half-life of 14C is 5730 years. A sample of wood, preserved for many years, is found to have one 14C for every 3:3 1012 12C atoms. (i) How long ago was the wood formed? Also, (ii) what would be the activity level, in becquerels, of 1.0 gram of carbon extracted from this wood? 86. The result of breaking apart a single 235U nucleus is not predictable; there are many possible end products. Your Serway text asserts that, on average, 240 MeV is released.
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