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| a pure substance that cannot be separated or broken down into simpler substances by physical or chemical means |
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| elements that are shiny and are good conductors of thermal energy and electric current |
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| elements that are dull and are poor conductors of thermal and electric current |
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| elements that have properties of both metals and nonmetals |
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| can be flattened with a hammer witout shattering |
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| the ability of a substance to be drawn or pulled into a wire |
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| a pure substance composed of two or more elements that are chemically combined |
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| a combination of two or moresubstances that are not chemically combined |
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| a mixture that apears to be a single substance but is composed of particles of two or more substances that are distributed evenly amongst each other |
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| the smallest particle into which an element can be divided and still be the same substance |
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| the negativley charged particles found in all atoms |
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| the particles of the nucleus that have no charge |
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| the positivley charged particles of the nucleus |
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| the tiny extremely dense positivley charged region in the center of an atom |
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| the region inside an atom where electrons are likely to be found |
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| the number of protons in the nucleus of an atom |
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