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Term | Definition |
---|---|
Periodic Table | a chart that organizes information about all of the known elements according |
Period | |
Group | a vertical column of elements in the periodic table; element 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 | describes how likely an element is to form bonds with other elements |
Metalloid | elements that have properties of both metal and nonmetals |
Inert | unable to react chemically under normal circumstance |