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Tremayne Stone
Ch. 5 Vocabulary
| Term | Definition |
|---|---|
| Periodic Table | The arrangement of elements in columns based on a set of properties that repeat from row to row |
| Period | Each row in the periodic table of elements. |
| Group | Each column on the periodic table of elements. |
| Periodic Law | The pattern of repeating properties on the periodic table. |
| Atomic mass unit(AMU) | one twelfth the mass of a carbon-12 atom. |
| Metals | Elements that are good conductors of electric current and heat. |
| Nonmetals | Elements that are poor conductors of heat and electric current. |
| Metalloids | Elements with properties that resemble metals and nonmetals |
| Valence Electrons | An electron that is in the highest occupied energy level of an atom |
| Alkali Metals | The elements of group 1A |
| Alkaline Earth Metals | The elements of group 2A. |
| Halogens | The elements of group 7A |
| Noble Gases | The elements of group 8A |
| Transition Metal | Are elements that form a bridge between the elements on the left and right side |