| A | B |
|---|
| Periodic Table | A chart of the elements arranged into rows and columns |
| Group | Is a column on the periodic table |
| Period | The rows on the periodic table |
| Metal | An element that is generally shiny, easily pulled into wires or hammered into sheets |
| Luster | Describes the ability of a metal to reflect light |
| Ductility | The ability to be pulled into thin wires |
| Malleability | The ability of a substance to be hammered or rolled into sheets |
| Alkali Metals | The elements in group 1 |
| Alkaline Earth Metals | The elements in group 2 on the periodic table |
| Transition Elements | The elements in groups 3-12 |
| Nonmetals | Elements that have no metallic properties |
| Halogen | An element in group 17 on the period table |
| Noble Gases | The elements in group 18 |
| Metalloid | An element that has physical and chemical properties of both metals and nonmetals |
| Semiconductor | Conducts electricity at high temperatures, but not at low temperatures |
