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| contains atoms of carbon bonded to one another and to other kinds of atoms |
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| a large, complex molecule built from smaller molecules joined together |
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| the smaller molecules from which polymers are built |
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| synthetic polymers that can be molded or shaped |
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| combine two ore more substances as a new material with different propterites |
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| a mixture made of two or more elements that have the properties of metal |
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| hard, crystalline solids made by heating clay and other mineral materials to high temperatures |
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| a clear, solid material with no crystal structure |
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| a thread like piece of glass (or plastic) that can be used for transmitting light |
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| reactions involving the particles in the nucleus of an atom |
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| atoms with the same number of protons and a different number of neutrons |
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| the sum of the protons and neutrons in the nucleus of an atom |
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| the atomic nuclei of unstable isotopes that release fast-moving particles and energy |
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| consists of two protons and two neutrons |
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| an electron given off by a nucleus during radioactive decay |
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| high energy waves, similar to x-rays |
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| the time needed for half the atoms of a sample to decay in an isotope |
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| the process of determining the age of an object using the half-life of one or more radioactive isotopes |
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| radioactive isotopes that can be followed through the steps of a chemical reaction or industrial process |
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| radioactive elements that are used to destroy unhealthy cells |
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| particles and energy produced during radioactive decay |
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