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S8P1.f
recognize that there are more than 100 elements and some have similar properties
| Term | Definition |
|---|---|
| Periodic Table | a chart that organizes information about all of the known elements according to their properties |
| Period | in chemistry, a horizontal row of elements in the periodic table |
| Group | a vertical column of elements in the periodical table |
| Valence Electrons | an electron that is found in the outermost shell of an atom that determines the atoms properties |
| Reactivity | describes 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 |