3. Pretend you have a tool like the one on the Dating Game tab: a. How do you decide when to use Carbon-14 or Uranium-238?
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The question asks how to decide between using Carbon-14 dating and Uranium-238 dating. This implies understanding the principles and limitations of each dating method. Show more…
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4. If you were a forensic scientist and found a dead buried body, could you use one of the isotopes in the simulation to figure out how long ago the person died? Explain. 5. What type of reaction do Carbon-14 and Uranium-238 undergo? Explain how you figured this out and write the reaction for each.
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Jorge V.
As a geologist, you're assessing the feasibility of determining the ages of Earth's earliest rocks using radioactive dating. You estimate the number of half-lives that have passed for three different isotopes during Earth's 4.5 -billion-year lifetime, and from that you determine the number of atoms remaining today from $10^{6}$ atoms present at Earth's formation. The isotopes you consider are carbon- $14,$ uranium-238, and potassium-40. What are your estimates, and which isotopes do you conclude are suitable for radioactive dating?
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