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Nathan Cornelius
Chapter 5 Vocabulary
| Term | Definition |
|---|---|
| Periodic Table | An arrangement of elements in columns,based on a series of properties that repeat row to row |
| Period | Each row in the table of elements |
| Group | Each column on the table of elements |
| Periodic Law | The periodic tables pattern of repeating properties |
| Atomic Mas Unit (AMU) | Defined as one twelfth of a carbon-12 atom, standard for measuring atomic masses |
| Metals | Elements that are good conductors of electric current and heat |
| Transition Metals | Elements that form the bridge that separates the elements on the left and right of the periodic table |
| Nonmetals | Elements that are poor conductors of heat and electric currents |
| Metalloids | Elements that have properties that fall inbetween metals and nonmetals |
| Valence Electrons | An electron in the highest occupied energy level of the element |
| 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 |