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Atoms
this stack will help you learn the basics about atoms
| Term | Definition |
|---|---|
| Atomic Number | Number of protons and electrons in an atom |
| Atomic Mass | total weight of protons and neutron (everything in the nucleus) |
| atom | smallest unit of matter |
| neutron | a subatomic particle that has no charge and that is found in the nucleus of an atom |
| proton | a subatomic particle that has a positive charge and that is found in the nucleus of an atom. Represented by the atomic number |
| electron | a subatomic particle that has a negative charge- found outside the nucleus |
| element | A pure substance made up of only one kind of atom |
| compound | a substance made up of atoms of two or more different elements joined by chemical bonds |
| mixture | a combination of two or more substances that are not chemically combined |
| molecule | a group of atoms bonded together |
| pure substance | a substance that cannot be separated by physical means; elements and compounds |
| homogeneous mixture | a mixture that is evenly mixed; also called a solution |
| precipitate | an insoluble substance that is produced as a result of a chemical reaction |
| heterogeneous mixture | a mixture that is unevenly mixed |
Created by:
meekinsscience
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