Carbon Dating, obviously, means the using of the element Carbon to date objects.
Carbon-14, an isotope of Carbon, is unstable and radioactive, which means that scientists are able to easily detect the amount of it.
Radiocarbon dating can be used on samples of bone, cloth, wood and plant fibers.
The half-life of a radioactive isotope describes the amount of time that it takes half of the isotope in a sample to decay.
Over time, Carbon-14 will 'decompose' into Nitrogen-14, a more stable isotope.
This means that, within a carbon object, the lower the number of Carbon-14 isotopes, the older the object.
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The amount of carbon 14 will decay at a fixed rate so, by measuring the amount of carbon-14 compared with carbon-12, scientists can know how old it is.
The total mass of the isotope is indicated by the numerical superscript.
While the lighter isotopes C has decayed that what remains can no longer be measured. In 5,730 years half of the C in the atmosphere, and therefore in plants and animals, has not always been constant.
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View the full list Radiocarbon dating has transformed our understanding of the past 50,000 years.