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Stack #88057

Chapter 11 and 12
electron the - charg. part. of the nucleus
semi conductors a substance that conducts an electric current better than an insulater but not as well as a conductor
neutron particles of the nucl. that have no chg.
nucleus in ctr. of the atom, a tiny ext.dense + chg. region
amu SI unit used to express the masses of part. in atoms
electron shell/energy level inside the atom where electrons are likely found
periodic table a table that list all the elem., chemical symb., atomic # and mass
metals found to the left of the zigzag line on the periodic table
nonmetals found to the right of the zigzag line on the periodic table
metalloids border the zigzag line
alloys solid solution of metals or nonmetals disolved in meals
proton the + charg. particles of the nucleus
strong force attractive force that holds the protons and neutrons together in the nucleus
Created by: spmcam