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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 atoms nucleus Is the identity of the element and atomic number. |
| Neutron | A neutral subatomic particle in the atoms nucleus.Has no charge and most of the mass. |
| Electron | A negative subatomic particle spinning outside the nucleus of an atom. |
| Element | The simplest forms of matter that contain only one type of atom. |
| Periodic Table of Elements | A chart that organizes all the 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. |