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Kendall Lawson
Chapter 5 Vocabulary
| Term | Definition |
|---|---|
| Periodic Table | An arrangement of elements into columns, based on 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 | An amu is defined as one twelfth the mass of carbon-12 atom |
| Metals | are elements that are good conductors of electric current and heat |
| Nonmetals | are elements that are poor conductors of heat and electric current |
| Metalloids | are elements with properties that fall between those of metals and nonmetals |
| Valence Electron | an electron that is in the highest occupied energy level of an atom |
| Alkali metals | Elements in group 1A |
| Alkaline Earth Metals | The elements in group 2A |
| Halogens | The elements in Group 7A |
| Noble Gases | The elements in group 8A |
| Transition Metals | Are elements that form a bridge between the elements on the left and right sides of the table |