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8 Cards in this Set
- Front
- Back
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atom |
the smallest unit of matter that cannot be broken down by chemical means. *different than a cell* |
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chemical bond |
an attraction between atoms that allows the formation of chemical substances that contain two or more atoms EX: hydrogen bond, ionic bond |
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compound |
a substance made of the joined atoms of two or more different elements. |
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element |
a pure substance made of only one kind of atom |
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hydrogen bond |
a weak chemical attraction between polar molecules. polar molecules are molecules with an unequal distribution of electric charges |
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matter |
anything that has mass and takes up space |
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covalent bond |
form when two or more atoms share electrons to form a molecule |
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molecule |
a group of atoms held together by covalent bonds |
