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APS matter chapter
matter, atoms, molecules
| term | Definition |
|---|---|
| matter | the substance or substances of which any physical object consists or is composed |
| molecule | multiple atoms bonded together |
| atom | a single unit of matter |
| element | atoms or molecules made up of a single type of atom |
| compound | a molecule made up of 2 or more different types of atoms |
| pure substance | a substance made up of one type of matter (can be an element or compound) |
| mixture | a substance made up of multiple types of matter. |
| heterogeneous mixture | a mixture where the particles are NOT evenly distributed. |
| homogeneous mixture | a mixture where the particles are evenly distributed. |