| A | B |
|---|
| Cesium | Alkali Metal |
| On the left side of the periodic table, except H. | Metals |
| On the top right side of the table, including H. | Nonmetals |
| Located along the zig zag line. | Metalloids |
| Considered mostly unreactive. | Noble Gases |
| Br is a member of this family. | Halogens |
| Magnesium | An alkali earth metal in the second period. |
| The "tall groups" | Representative Elements |
| The "short groups" | Transition Elements |
| positively charged ion | cation |
| negatively charge ion | anion |
| Charge on a sodium ion | +1 |
| charge on A chlorine ion | -1 |
| A row on the periodic table | Period |
| A column on the period table | Group or Family |
| Charge on a calcium ion | +2 |
| Charge on an oxygen ion | -2 |
| Charge on a nitrogen ion | -3 |
| Charge on an aluminum ion | +3 |
| An atom will lose, gain or share electrons to get to eight electrons. | Octet Rule |
| Exceptions to the octet rule | He and H |
