The half-life of carbon-14 is 5,730 years. An artifact produces 9.9 disintegrations of 14C per minute per gram of carbon in the sample. Estimate the age of this sample assuming that its original radioactivity was 15.3 disintegrations per minute per gram of carbon.
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The half-life of carbon-14 is 5,730 years. An artifact produces 9.9 disintegrations of 14C per minute...
In a living organism, the decay of C-14 produces 15.3 disintegrations per minute per gram of carbon. The half-life of C-14 is 5730 years. A bone sample with 2.6 g of carbon has 15.7 disintegrations per minute. How old is the bone sample in years?
A wooden artifact is found to have a 14C activity of 6.1 disintegrations per second. Given that the 14C activity of an equal mass of fresh-cut wood has a constant value of 15.2 disintegrations per second, determine the age (years) of the artifact. The half-life of carbon-14 is 5715 years.
1) In a living organism, the decay of C-14 produces 15.3 disintegrations per minute per gram of carbon. The half-life of C-14 is 5730 years. A bone sample with 2.5 g of carbon has 22.5 disintegrations per minute. How old is the bone sample in years? 2) There are three isotopes of phosphorus. Only one of them is stable. Calculate the binding energy per nucleon (in MeV) for P-30 (atomic mass = 29.9783 u). H = 1.007825 u and n...
An archeological artifact was subjected to radiocarbon dating. The artifact showed a carbon-14 decay rate of 12.2disintegrations/min per gram of carbon. Carbon-14 has a half-life of 5715 years, and currently living organisms decay at the rate of 15.3 disintegrations/min per gram of carbon. What is the approximate age of the artifact? Select one: A. 371 years old B. 6597 years old C. 851 years old D. 1867 years old
explain 7 & 8 please Question 7 1 pts The AC activity of an artifact from a burial site was 8.7/min.g C. The half-life of C is 5730 years, and the current activity is 16.1/min.g C (that is, 16.1 disintegrations per minute per gram of carbon). How old in years) is the artifact? Enter number to 1 decimal place. Question 8 1 pts Analysis of an ant found in a piece of amber provided 10 disintegrations of 14C/min.g C, whereas...
A skeleton has a carbon-14 decay rate of 0.27 disintegrations per minute per gram of carbon. When did the animal live? Assume that living organisms have a carbon-14 decay rate of 15.3 d/min g C and that carbon-14 has a half-life of 5730 yrs.
An artifact classified as bone, horse, found in a site at Offham, England, is found to have a 14C radioactivity of 0.192 counts per second per gram of carbon. If living carbon-containing objects have an activity of 0.255 counts per second per gram of carbon, estimate the age of the artifact? The half-life of 14C is 5730 years. у
7.3 The decay rate of the isotope carbon-14 (14C) is often used to establish the date on which carbon-containing matter died. In the upper atmosphere, cosmic radi- ation synthesizes 14C. This process balances the loss of 14C through radioactive decay. Living matter, which exchanges carbon with atmospheric carbon diox- ide and maintains its 14C level, produces 15.3 disintegrations per minute per gram of carbon it contains. Dead organisms no longer exchange carbon with the atmosphere, and the 14C content decreases...
022 10.0 points The amount of carbon-14 (C) in a wooden artifact is measured to be 25 pern te amount in a fresh sample of wood fro the ane regon Assuming the same amount of carbon-14 was initially present in the artifact, determine the age of the artifact. The half life of carhon 14 is 5730 years. Answerin units of y 023 10.0 points A piece of charcoal used for cooking is found at the remains of an ancient campsite....
A wooden artifact from a Chinese temple has a 14C activity of 38.0 counts per minute as compared with an activity of 58.2 counts per minute for a standard of zero age. From the half-life for 14C decay, 5715 yr, determine the age of the artifact.