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Matter & Mixtures: Elements and Compounds: What are Elements? (1 of 4) |
An element is made of only one type of atom (for example: O, O2, Cl, Fe, Na). The periodic table provides a list of all known elements in the universe. Elements cannot be broken down by chemical reactions. Compounds are made up of different elements (for example: FeO, NaCl, FeCl3). Compounds can be broken apart by breaking the chemical bonds between atoms. |
