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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 thier properties |
Period- | on chemistry, a horizontal row of elements in the periodic table. |
Group- | a vertical column of elements in the periodic tables; 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 atom's chemical properties |
Reactivity- | describe how likely an element is to for bonds with other elements. |
metalloid- | elements that have properties of both metals and nonmetals |
Inert- | unable to react chemically under normal circumstances |