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Chemistry, 28.02.2020 19:24, harodkdc8463
The half-life of carbon-14 is about 5,730 years. A tree fossil was estimated to have about 4.2 picograms of carbon-14 when it died. (A picogram is a trillionth of a gram.) The fossil now has about 0.5 picogram of carbon-14. About how many years ago did the tree die? Show your reasoning.
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The half-life of carbon-14 is about 5,730 years. A tree fossil was estimated to have about 4.2 picog...
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