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periodic table terms
| Question | Answer |
|---|---|
| Periodic | 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 numbers of the elements |
| period | 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 |
| alaki metal | one of the elements of group 1 of the periodic table |
| alakine-earth metal | one of the elements of group 2 of the periodic table |
| Halogen | one of the elements of Group 17 of the periodic table |
| noble gas | one of the elements of group 18 of the periodic table |