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PS4

TermDefinition
metals left of the stair step line lose electrons in chemical reactions conductors of heat and electricity,shiny,malleable,and ductile
metalloid border the stair step line some properties of both metals and nonmetals
nonmetal right of the stair step line gain electrons in chemical reactions
periodic law repeating chemical and physical properties of elements change
atomic symbol identifies elements first letter capitalized other letters lower case
proton positive nucleus mass of 1 amu discovered by rutherford
neutron subatomic particle no charge located in nucleus mass of 1 amu discovered by chadwick
electron subatomic particle negative located in electron cloud mass of 0amu discovered by thomson
Created by: ashton91725