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Erin Rang
Chapter 5 Vocab.
| Term | Definition |
|---|---|
| Periodic Table | An arrangement of elements in columns, based on a set of properties that repeat from row to row |
| Period | Each row in the table of elements |
| Group | Each column on the periodic table |
| Periodic Law | The pattern of repeating properties |
| Atomic Mass Unit | Defined as one twelfth the mass of a carbon-12 atom |
| Metals | Elements that are good conductors of electric current and heat |
| Transition Metals | elements that form a bridge between the elements on the left and right side of the table |
| Nonmetals | Elements that are poor conductors of heat and electric current |
| Metalloids | Elements with properties that fall between those of metals and nonmetals |
| Valence Electrons | An electron that is in the highest occupied energy level of an atom |
| Alkaline Metals | The elements in group 1A |
| Alkaline Earth Metals | The elements in group 2A |
| Halogens | The elements in group 7A |
| Noble Gasses | The elements in group 8A |