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26-12-2017
Chemistry

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An artifact contains 1/4 as much carbon-14 as the atmosphere. How old is the artifact

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26-12-2017

The artifact appears to have gone through 2 half-lives.
One half-life for Carbon-14 is 5730 years.
After 5730 years, there would be 1/2 as much carbon-14
After another 5730 years, there would be 1/4 as much carbon-14

The answer is roughly 11,460 years

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