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Lindz Periodic Table
Lindsey's Vocab words for chapter 12
| Question | Answer |
|---|---|
| Periodic | describes something that occurs or repeats at regular intervals |
| periodic law | states that the repeating chemical and physical properties of elements change periodically with the elements' atomic numbers. |
| period | in chemistry, a horizontal row of elements in the periodic table |
| group | a vertical column of elements in the periodic table; elements in a group share chemical properties |
| Alkali metals | elements in group 1 of the periodic table |
| Alkaline-earth metals | Group 2 of the periodic table; less reactive than alkali metals |
| Halogens | very reactive nonmetals of group 17; need only one electron to have complete outer level |
| Noble gases | unreactive metals in group 18 |