Final answer:
Carbon-14 and Carbon-12 isotopes are used in radiocarbon dating to determine the age of organic materials based on decay.
Explanation:
Carbon-14 (14C) and Carbon-12 (¹2C) isotopes are used in radiocarbon dating. Carbon-14 is a radioactive isotope created in the atmosphere and absorbed by living organisms. When an organism dies, the decay of Carbon-14 to Carbon-12 can be measured to determine its age.
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