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| Anything that has mass and occupies space |
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| A substance that cannot be broken down into simpler substances by chemical means; one of the basic building blocks of which all matter is composed |
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| The smallest particle that retains the characteristic composition of an element |
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| An uncharged, covalently bonded group of atoms |
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| A chemical combination of elements that has a definate composition and its own set of properties |
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| A charged atom or group of atoms |
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| Two or more forms of an element whose atoms have the same number of protons, but a different number of neutrons |
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| One of the seven horizontal rows of the periodic table |
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| In a periodic table, a column that includes elements with similar chemical properties; a family |
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| A bond resulting from electron sharing |
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| The attractive force between two oppositely charged ions |
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| A covalent bond in which there is uneven sharing of electrons |
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| The chemical unit of quantity for any substance; equal to 6.02 x 10^23 individual atoms, molecules, or formula units of substance; abbreviated mol. |
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| An increase in oxidation number |
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| The lowering of oxidation number |
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| The compound of a solution that is dissolved in another compound (the solvent) |
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| The compound of a solution that does the dissolving |
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| A compound that provides H+ ions to water solution |
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| A compound that provides OH- ions to water solution |
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| An ionic compound that does not contain H+, OH-, or O^2- ions |
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