carbon dating uses carbon 14

ISSN Chinese Physics C. Once the organism dies, it stops replenishing its carbon supply, and the total carbon content in the organism slowly disappears. Carbon has a half life of years, meaning that years after an organism dies, half of its carbon atoms have decayed to nitrogen atoms. This provides a value for the background radiation, which must be subtracted from the measured activity of the sample being dated to get the activity attributable solely to that sample's 14 C. The rate of 14 C production can be modelled, yielding values of 16, [18] or 18, [19] atoms of 14 C per second per square meter of the Earth's surface, which agrees with the global carbon budget that can be used to backtrack, [20] but attempts to measure the production time directly in situ were not very successful. The resulting data, in the form of a calibration curve , is now used to convert a given measurement of radiocarbon in a sample into an estimate of the sample's calendar age.

CARBON DATING USES CARBON 14 / morphy.info

• Secure and Private
• Easy to Use
• Find Matches Quickly
• Verified Profiles