Half life
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5 Terms
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random process
radioactive decay
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half life
The time it takes for the number of nuclei of a sample of radioactive isotopes to decrease by half
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medical tracers
carbon dating
Uses of half lives
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Measure initial activity of the sample
Find where this is half
Measure how much time has changed between these
Calculating half life
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(1/2)number of half lives
Finding what fraction of decay is left after a certain number of half lives
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Flashcards (22)