This technique is not restricted to bones; it can also be used on cloth, wood and plant fibers.
Carbon-14 dating has been used successfully on the Dead Sea Scrolls, Minoan ruins and tombs of the pharaohs among other things. The half-life of carbon-14 is approximately 5,730 years. dinosaurs the evolution alleges lived millions of years ago.
In a related article on geologic ages (Ages), we presented a chart with the various geologic eras and their ages.
In a separate article (Radiometric dating), we sketched in some technical detail how these dates are calculated using radiometric dating techniques.
Radioactive decay is the term used for the process by which an unstable atomic nucleus loses energy by releasing radiation.
We know that elements can exist as isotopes, which means that their atomic nuclei contain the same number of protons but different numbers of neutrons.
Carbon is naturally in all living organisms and is replenished in the tissues by eating other organisms or by breathing air that contains carbon.
At any particular time all living organisms have approximately the same ratio of carbon 12 to carbon 14 in their tissues.
The half-life of a radioactive isotope describes the amount of time that it takes half of the isotope in a sample to decay.
Radiometric dating is sometimes referred to as radioactive dating.
In fact, you might like this term better, because the dating method relies on the known decay rate of radioactive isotopes.
Archaeologists use the exponential, radioactive decay of carbon 14 to estimate the death dates of organic material.
The stable form of carbon is carbon 12 and the radioactive isotope carbon 14 decays over time into nitrogen 14 and other particles.