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poopoos vocab
periodic table
| vocab word | definition |
|---|---|
| Periodic | Describes something that occurs or repeats at regular intervals |
| Periodic law | the law that states that the repeating chemical and physical properties of elements change periodically with the atomic #'s of the elements. |
| period | in chemistry, a horizontal row of elements in the periodic table. |
| group | a vertical column of elements on the periodic table; elements in a group share chemical properties. |
| alkali metal | one of the elements of group 1 of the periodic table. |
| alkaline-earth metal | one of the elements in group 2 of the periodic table. |
| halogen | one of the elements of group 17 of the periodic table. |
| noble gas | one of the elements in group 18 of the periodic table. |