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| a substance that cannot be broken down to other substances by chemical reactions |
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| a substance consisting of two or more different elements combined in a fixed ratio |
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| elements essential for life in minute quantities |
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| Explain how table salt has emergent properties? (pg32) |
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| table salt is made up of sodium and chlorine. We are able to eat the compound, showing that it has different properties from those of a metal and a poisonous gas. |
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| a compound has properties different from those of its elements |
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| anything that takes up space and has mass |
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| defined as the capacity to cause change - for instance, by doing work |
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| the energy that matter posses because of its location or structure |
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| energy level of electrons at a characteristic average distance from the nucleus of an atom - also tells the energy level. The closer to the nucleus the less energy. |
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| the three dimensional space where an electron is found 90 percent of the time |
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