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p.t. terms vocab
ch. 5 terms
| Question | Answer |
|---|---|
| A row in the periodic table. | Period |
| A column of elements in a periodic table. | Group |
| The pattern of repeating properties displayed by elements in the periodic table. | Periodic Law |
| One twelfth the mass of a carbon-12 atom. | Atomic Mass Unit |
| Elements that are good conductors of heat and electric current. | Metals |
| Elements that form a bridge between elements on the left and right sides of the period table. | Transition Metals |
| Elements that are poor conductors of heat and electric currents. | Nonmetals |
| Elements with properties that fall between those of metal and nonmetals. | Metalloids |
| An electron that is in the highest occupied energy level of an atom. | Valence Electron |
| These metals are extreamly reactive and have a single valence electron. | Alkali Metals |
| These metals have two valence electrons and are harder then Alkali metals. | Alkaline Earth Metals |
| Highly reactive nonmetals, with seven valence electrons. | Halogens |
| They are colorless, oderless, and extreamly unreactive, with eight valence electrons. | Noble Gases |