Chemistry, 02.09.2019 20:20 DepressionCentral
Carbon 14 dating assumes that the carbon dioxide on earth today has the same radioactive content as it did centuries ago. if this is true, the amount of carbon 14 absorbed by a tree that grew several centuries ago should be the same amount of carbon 14 absorbed by a tree growing today. a piece of ancient charcoal contians only 155 as much radioactive carbon as a piece of modern charcoal. how long ago was the tree burned to make the ancient charcoal if the half-life of carbon 14 is 5715 years?
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Chemistry, 22.06.2019 00:00
Which of the following methods uses the decay of atomic particles in an object to find its exact age? a. fossil dating b. geologic dating c. radioactive dating d. relative dating
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Chemistry, 22.06.2019 10:00
Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.
Answers: 1
Carbon 14 dating assumes that the carbon dioxide on earth today has the same radioactive content as...
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