Carbon dating radioactive
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.
The radioactive atom is absorbed by plants and living matter in the same way as its non-radioactive isotope ; in every thousand billion (ten to the power of twelve) atoms of carbon 12, there will be on average one atom of carbon 14.
This tiny ratio exists in all molecules involving carbon atms, including all living matter.
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The rate at which the regeneration takes place has gone virtually unchanged for centuries; a feature which depends on the flux of particles bombarding the earth, and the strength of the magnetic field capable of diverting them.
The carbon-14 atoms combine with the oxygen in the air to form carbon dioxide (C).Carbon dating is one type of radiometric dating, there are others.Carbon dating uses the carbon-14 isotope, with a half life of about 5700 years.The amount still present in a sample of what was once a living creature can thus be used to determine its age.Carbon 14 can also be used as a radioactive marker.
This radioactive isotope of carbon is called radiocarbon.