Lecture 19: Radioactivity
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Last updated 4:32 AM on 6/2/25
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5 Terms
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outline radioactivity
the nuclei of some elements are unstable
these unstable nuclei are radioactive and spontaneously decay by the emission of radiation to become stable
three types of radiation: alpha beta and gamma
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Describe the radioactive decay law
the nuclei of a radioactive isotope decay one by one over a period of time
this is a random process, however we can predict appx how many nuclei in a sample will decay
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What are the units of disintegration
becquerel
curie
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What is a half life?
the time taken for half the radioactive nuclei to decay
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Outline radiocarbon dating
Note 
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