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S8P1.f
Recognize that there are more than 100 elements and some have similar properties
| Term | Definition |
|---|---|
| Periodic table | Elements'properties followed a pattern that repeated every 7 elements |
| Period | in chemistry, a horizontal row of elements in the periodic table |
| Group | vertical column of elements in the periodic table; elements in a group share chemical properties |
| Valence electrons | an electron that is found in the outermost shell of an atom and that determines the atoms chemical properties |
| reactivity | how likely an element is to form bonds with other elements |
| Metalloid | elements that have properties of both metals and nonmetals |
| Inert | unable to react chemically under normal circumstances |