Lesson 2 - Radioactive Decay

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5 Terms

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Carbon dating

method used to determine the age of an object containing organic material by measuring the amount of carbon-14 is left after decay

when the organism is alive, the ratio of carbon-14 to carbon-12 is equal but after it dies, the carbon-14 decays

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Parent isotope

original radioactive material

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Daughter isotope

stable, end-product of the radioactive decay

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Decay curves

graphical representations of the decay of radioactive isotopes over time, illustrating the relationship between parent and daughter isotopes

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Half life

the time required for half of a radioactive substance to decay into its daughter isotopes