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AP Physics 2
Carbon-14 is a radioactive isotope of carbon that occurs naturally in the atmosphere and is used in carbon dating to determine the age of organic materials.
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Radioactive Isotope: A radioactive isotope is an atom with an unstable nucleus that undergoes radioactive decay.
Carbon Dating: Carbon dating uses the ratio of carbon-14 to stable carbon isotopes to determine the age of organic materials.
Decay Constant: The decay constant represents the probability per unit time that a given nucleus will undergo radioactive decay.