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27-Nov-2017 02:32

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Notice that the nitrogen-14 atom is recreated and goes back into the cycle.

Radioactive carbon-14 is continually formed in the atmosphere by the bombardment of cosmic ray neutrons on nitrogen-14 atoms.

After it forms, carbon-14 naturally decomposes, with a half-life of 5,730 years, through beta-particle decay.

This technique works well for materials up to around 50,000 years old.

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Each radioactive isotope decays by a fixed amount, and this amount is called the half-life.

Once the organism dies, the amount of carbon-14 reduces by the fixed half-life - or the time required for half of the original sample of radioactive nuclei to decay - of 5,730 years, and can be measured by scientists for up to 10 half-lives.

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