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6 Cards in this Set
- Front
- Back
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Element |
A pure substance that cannot be broken down into any other substances by chemical or physical means- Each element can be identified by its physical and chemical properties |
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Atom |
Elements are made up of basic particles called atoms |
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Chemical Bond |
Is a force of attractions between two atoms |
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Molecule |
Is a group of two or more atoms held together by chemical bonds |
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Compound |
Is a substance made of two or more elements that are chemically combined - A compound is represented by a chemical formula- Example: CO2 = carbon dioxide- Compounds have different properties from those of elements |
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Mixture |
Is made up of two or more substances that are together in the same place but their atoms are not chemically bonded - In mixtures substances keep their own properties |
