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carbon-14

radioactive isotope of carbon Occurrence: - 1 part per trillion (0.0000000001%) of the carbon in the atmosphere - the primary natural source of carbon-14 on earth is cosmic ray action upon nitrogen in the atmosphere Pharmacokinetics: - 1/2 life of carbon-14 is 5730 years [1] - carbon-14 decays into nitrogen-14 through beta decay [1] Uses: - used for carbon dating

General

carbon [C] radioactive isotope

References

  1. Wikipedia: Carbon-14 http://en.wikipedia.org/wiki/Carbon-14