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chemistry
| Term | Definition |
|---|---|
| Atom | Smallest piece of matter that has the same properties of the element it is in |
| Proton | A positive + subatomic particle in the atom's nucleus. Is the identity of the element and atomic number |
| Neutron | A neutral subatomic particle in the atom's nucleus .... has no charge and most of the mass |
| Electron | A negative subatomic particle spinning outside the nucleus of an atom. Tiny! |
| Element | The simplest forms of matter that contain only one type of atom |
| Periodic Table of Elements | A chart that organizes all elements by atomic number and properties |
| Valence Electron | The electron in the outer level of an atom that causes atoms to bond together |
| Chemical Bond | An interaction that holds 2 atoms together. |