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| Smallest particle of an element that has the properties of that element |
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| Extremely small particle with almost no weight, carries a negative electrical charge and is in constant motion around an atomic nucleus |
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| Relatively large atomic particle, carries a positive electrical charge and is found within an atomic nucleus |
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| Particle with about the same weight as a proton, uncharged and thus electrically neutral, found within an atomic nucleus. |
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| Particle formed by the chemical union of two or more atoms. |
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| Substance that releases hydrogen ions |
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| Substance that releases ions that can combine with hydrogen ions |
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| Substance formed by the reaction between an acid and a base. |
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| Major component of body fluids. Medium in which most reactions occur. Transports various chemical substances. Helps regulate body temperature. |
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| Used in release of energy from glucose molecules. |
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| Waste product that results from metabolism. Reacts with water to form carbonic aced |
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| Help maintain acid base balance |
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| Necessary for bone development. Muscle contraction and blood clotting |
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| Help maintain water balance |
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| pH of the internal environment |
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| Required for synthesis of ATP, nucleic acids, and other vital substances. Component of bone tissue |
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