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chapter 4

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
Radioactivity   the process in which some substance spontaneously emit radiation  
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nuclear reaction   a reaction that involves a change in the nucleus of an atom  
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radioactive decay   a spontaneous process in which unstable nuclei lose energy by emitting radiation  
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alpha radiation   radiation that is made up of alpha particles; is deflected toward a negatively charged plate when radiation from a radioactive source is directed between two electrically charged plates.  
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beta radiation   radiation that is made up of beta particles; is deflected toward a positively charged plate when radiation from a radioactive source is directed between two electrically charged plates  
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