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the atomic nuclei of unstable isotope release fast-moving particles and energy |
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being able to spontaneously emit radiation |
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two protons, two neutrons, positively charged |
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fast-moving electron given off by a nucleus during radioactive decay. |
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consists of high energy waves, similar to xrays |
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radioactive isotopes that can be followed through the steps of a chemical reaction or an industrial process. |
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the atomic nuclei of unstable isotopes releast fast-moving particles and energy |
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He discovered the effects of radioactive decay. |
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Bequerel put this away in a drawer |
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a sample of radioactive material next to a photographic plate |
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Becquerel hypothesized that uranium can spontaneously give off |
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Marie and Pierre Curie concluded that: |
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a reaction was taking place within the uranium nuclei |
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radioactive nucleus, no gain or loss of particles |
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radioactive nucleus, one less neutron, one more proton |
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radioactive nucleus, 2 protons and 2 neutrons lost |
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least penetrating type of radiation |
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type of radiation that can cause the most damage to cells in the body |
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name three uses of a radioactive isotope |
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trace steps of chemical reactions and industrial processes; diagnose and treat disease; provide sources of energy to generate electricity |
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radioactive isotopes that can be followed through the steps of a chemical reaction or an industrial process |
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how are tracers useful in chemical reactions? |
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they help scientists understand natural processes and see the steps in a chemical reaction |
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scientists use radioactive tracers to: |
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study how plants use phosphorus look for weak spots in metal pipes |
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how are tracers used in medicine? |
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Definition
injected into a body, they travel to organs and other structures where that chemical is normally used |
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