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Matter: L4
Pure substances and Mixtures
Term | Definition |
---|---|
atom | smallest unit of that element that maintains the properties of that element |
element | made up of on or more of the same kind of atom chemically |
compound | made up of different kinds of atoms chemically comnbined |
mixture | contains a variety of elements and compounds that are not chemically combined with each other |
pure substance | a substance that has definite physical and chemical properties such as appearance, melting point, and reactivity |
heterogeneous | a mixture that does not have a uniform composition |
homogeneous | a mixture in which the substances are evenly spread throughout |