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8 Cards in this Set
- Front
- Back
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a group of more than one atom joined together that acts like a single particle
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molecule
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the dense center part of an atom
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nucleus
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a particle with a negative charge moving around the nucleus of an atom
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electron
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an uncharged particle in the nucleus of an atom
(remember: None....Neutral) |
neutron
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a particle with a positive charge in the nucleus of an atom
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Proton
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the smallest unit of an element that still has the properties of the element
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atom
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a chemical combination of two or more elements into a single substance
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compound
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a basic building block of matter; a pure substance that cannot be broken down into anything simpler
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element
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