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Tristan Acker
Ch. 5 Vocab
| Term | Definition |
|---|---|
| Period | Each row in the periodic table |
| Group | Each column in the periodic table |
| Periodic Law | Pattern of repeating properties |
| Atomic Mass Unit | 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 from a bridge between the elements on the left and right sides of the periodic 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 Electron | electron that is in the highest occupied energy level of an atom |
| Alkali Metals | Elements in Group 1A |
| Alkaline Earth Metals | Elements in Group 2A |
| Halogens | Elements in Group 7A |
| Noble Gases | Elements in Group 8A |