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