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Matter
anything that has mass and occupies space
| Term | Definition |
|---|---|
| Matter | Anything that has mass and occupies space |
| Element | A substance composed of a single kind of atom that cannot be broken down into other substances by chemical physical names |
| Periodic table | An organized table of all the known Elements. |
| Atomic number | The number of protons or Electron in an element |
| Atomic symbol | an abbreviation for the element name. |
| Atomic mass | the mass of protons or electrons in an element. |
| Compound | A substance in which two or more elements are chemically joined in a set ratio. |
| Atom | The smallest unit of an element that retains (or keeps)its properties of that element. |
| Nucleus | The central core of an atom that contains the protons and neutron. |
| Proton | small,positively charged particle in the nucleus of an atom. |
| Nuetron | Small,uncharged particle in the nucleus of an atom. |
| Electron | A tiny,negatively charged,high energy particle that moves in the space around the nucleus of an atom. |
| Electron shells | fixed orbits or paths that electrons travel in around the nucleus. |
| Molecule | two or more atoms that are bonded together . |
| Chemical bond | The force that holds two or more atoms together. |
| Mixture | Two or more substances that are mixed together but not chemically combined. |
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Daisy_happy03
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