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S8P1.f
Recognize-there are more than 100 elements&some have similar properties on PToE
| Term | Definition |
|---|---|
| Periodic Table | a chart that organizes info about all of the known elements according to their properties |
| Period | a horizontal row of the Periodic Table |
| Group | a vertical column of elements in the periodic table: elements in a group share chemical properties |
| Valence Electrons | electron found in the outermost shell of the atom: determines atoms chemical properties |
| Reactivity | the extent to which a substance will react to another |
| Metalloid | elements that have properties of both metals and non-metals |
| Inert | chemically inactive |