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12/13 Atomic Theory
| Term | Definition |
|---|---|
| alkali metals | one of the elements of Group 1 of the periodic table (lithium, sodium, potassium, rubidium, cesium, and francium) |
| alkali earth metals | one of the elements of Group 2 of the periodic table (beryllium, magnesium, calcium, strontium, barium, and radium) |
| Nobel gasses | one of the elements of Group 17 of the periodic table (fluorine, chlorine, bromine, iodine, and astatine); halogens combine with most metals to form salts |
| transistional metals | one of the metals that can use the inner shell before using the outer shell to bond |
| halogens | one of the elements of Group 17 of the periodic table (fluorine, chlorine, bromine, iodine, and astatine); halogens combine with most metals to form salts |