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10 Cards in this Set
- Front
- Back
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anything that has mass and takes up space |
matter |
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pure substance made up of only one kind of atom |
element |
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made of two or more elements chemically combined in a specific ration |
compound |
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2 or more substances in the same place but not chemically combined |
mixture |
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smallest particle of an element |
atom
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idea that explains and connects scientific observations |
theory |
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physical representation of an idea |
model
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negatively charged particle in an atom |
electron |
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positively charged region in the center of an atom |
nucleus
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positively charged atomic particle |
proton |
