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8 Sci Ch 9-3

8th Grade Science Chapter 9 Lesson 3 vocabulary

TermDefinition
nonmetal An element that lacks most of the properties of a metal.
diatomic molecule A molecule consisting of two atoms.
halogen An element found in Group 17 of the periodic table
noble gas An element in Group 18 of the periodic table.
metalloid An element that has some charateristics of both metals and nonmetals.
semiconductor A substance that can conduct electric current under some conditions.