Carbon dating problem

Carbon has a weight of twelve atomic mass units (AMUs), and is the building block of all organic matter (plants and animals).A small percentage of carbon atoms have an atomic weight of 14 AMUs. Carbon-14 is an unstable, radioactive isotope of carbon 12.

Many people have been led to believe that radiometric dating methods have proved the earth to be billions of years old. The method was developed by Willard Libby in the late 1940s and soon became a standard tool for archaeologists.Libby received the Nobel Prize in Chemistry for his work in 1960.The older a sample is, the less (the period of time after which half of a given sample will have decayed) is about 5,730 years, the oldest dates that can be reliably measured by this process date to around 50,000 years ago, although special preparation methods occasionally permit accurate analysis of older samples.The idea behind radiocarbon dating is straightforward, but years of work were required to develop the technique to the point where accurate dates could be obtained.Note that, contrary to a popular misconception, carbon dating is not used to date rocks at millions of years old.

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