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What methods do they use and how do these methods work?

In this article, we will examine the methods by which scientists use radioactivity to determine the age of objects, most notably carbon-14 dating.

It can’t be used to determine the age of a moon rock or a meteorite.

For nonliving substances, scientists use other isotopes, such as potassium-40.

C, or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

Its presence in organic materials is the basis of the radiocarbon dating method pioneered by Willard Libby and colleagues (1949) to date archaeological, geological and hydrogeological samples.

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Radioactive dating is helpful for figuring out the age of ancient things.As long as an organism is alive, the amount of C-14 in its cellular structure remains constant.But when the organism dies, the amount of C-14 begins to decrease.Scientists know the half-life of C-14 (5,730 years), so they can figure out how long ago the organism died.Carbon-14 dating can only be used to determine the age of something that was once alive.




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