| Term | Definition |
|---|---|
| Matter | Anything that has mass and takes up space. |
| Mass | The material that matter is made up of. |
| Volume | How much room/space matter takes up. |
| Density | D= m/v The amount of material/stuff matter takes up within a specific space. |
| Atom | The smallest particle of an element, the building blocks of all matter. |
| Electron | A particle of an atom with a negative charge, that has an attractive force and moves around the nucleus that allows it to bond with other atoms creating everything in the universe. |
| Proton | A particle of an atom with a positive charge located inside the nucleus. |
| Neutron | A particle of an atom with no charge located inside the nucleus along with the proton. |
| Periodic Table | A large grid that identifies and classifies all of the elements by their chemical and physical properties. |
| Element | The simplest substances that cannot be broken down / they make up all matter in the universe. |
| Periods/Rows | Rows that tell how many energy levels each elements has for the electrons to move around |
| Groups or Family/Columns | Columns that may tell how many valence electrons each element has/ the number of electrons that can move on its outer shell/ energy level. |
| Valence Electrons | The electrons that move on the outer shell/ energy level of an atom. |
| Atomic Number | How many protons an element has inside the nucleus/ usually is same # of neutrons and electrons. |
| Atomic Mass | The measurement of the mass for an elements atoms. |
| Chemical Property | The ability of substances to combine with one another forming new and different compounds and molecules. |
| Physical Property | The state of matter and appearance of a substance. |
