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8.P.1.1 Matter
8.P.1.1, Properties of Matter
| Term | Definition |
|---|---|
| atom | basic building block of life, smallest unit of an element, all matter is composed of atoms |
| element | pure substances that have only one atom |
| compound | made of 2 or more elements chemically combined and can't be separated |
| mixture | physical combination of 2 or more substances that can be separated |
| proton | a positively charged particle in the nucleus of atoms |
| neutron | a neutral (no charge) particle in the nucleus of atoms |
| electron | a negatively charged particle found in all atoms. It is the primary carrier of electricity in solids. |
| heterogeneous mixture | mixture that is not uniform because you can see the individual parts in it (examples: salad, granite, iced tea) |
| homogeneous | mixture that is uniform because it is evenly mixed and you can't see the individual parts in it (examples: air, steel, salt water) |
| Periodic Table | A table (chart) where all chemical elements are arranged in order of increasing atomic number (number of protons in the atom) |
Created by:
lee.wright
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