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Vocabulary

PS4

TermDefinition
metals left of the stair step line they lose electrons in chemical reactions conductors of heat and electricity, shiny, malleable, and ductile
meralloid border the stair step line , have some properties of both metals and nonmetals
nonmetals right of the stair step line , gain electrons in chemical reactions
periodic law repeating chemical and physical properties of elements change
atomic symbol identifies the element , consists of one two three letters . the first letter is always capitalized other letters are lower case
proton positive, in the nucleus has a mass of 1 amu discovered by Rutherford
neutron subatomic particle , no charge located in nucleus has a mass of 1 amu discovered by chadwick
electron negative subatomic particle located in the electron cloud has a mass of 0 amu discovered by thomson
Created by: amh