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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 info. about all of the known elements. |
Period | In chemistry, a horizontal row of elements in the periodic table |
Group | A vertical column of elements in the periodic table |
Valence Electrons | An electron that is found in the outermost shell of an atom and that determines the atom's chemical properties |
Reactivity | Describes how likely an element is to form bonds with other elements |
Metaloid | Elements that have properties of both metals and nonmetals |
Inert | Unable to react to chemically under normal circumstances. |