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classifying elements


proton a particle in the space inside the nucleus of an atom that carries
electron a particle in the space outside the nucleus of an atom that carries one unit of negative electric
atomic number the number of protons in a single atom of an element
molecule a particle that contains two or more
metals a substance that conducts heat and electricity
nonmetal a group of elements that are poor conductors of heat
noble gases the nonmetallic elements helium neon argon krypton
metalloids a small group of elements with some properties
periodic table a chart that shows all of the known elements and their proper
Created by: 610034026