Radioactivity half life carbon dating
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Count the remaining objects and repeat the process until half of them have decayed. It took a while, but we finally got pretty close to 40 tiles left.
Radioactive dating is helpful for figuring out the age of ancient things.
Carbon-14 (C-14), a radioactive isotope of carbon, is produced in the upper atmosphere by cosmic radiation.
For nonliving substances, scientists use other isotopes, such as potassium-40.
The amount of carbon-14 in the atmosphere has not changed in thousands of years.
A useful application of half-lives is radioactive dating.