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Carbon-14 dating is a way of determining the age of certain archeological artifacts of a biological origin up to about 50,000 years old.
It is used in dating things such as bone, cloth, wood and plant fibers that were created in the relatively recent past by human activities.
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The pathway from the plant to the molecule may have been indirect or lengthy, involving multiple physical, chemical, and biological processes.
How do scientists know how old an object or human remains are?Signals of this kind are often used by chemists studying natural environments.A hydrocarbon found in beach sediments, for example, might derive from an oil spill or from waxes produced by plants.Isotopes participate in the same chemical reactions but often at differing rates.
When isotopes are to be designated specifically, the chemical symbol is expanded to identify the mass (for example, C is not stable.Ninety-nine percent of these also contain six neutrons.