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Chapters 17, 18

atom the smallest part of an element with all the properties of the element
element fundamental material consisting on only one type of atom
nucleus core of the atom; has protons and neutrons
proton positively charged particle in the nucleus
neutron particle in the nucleus; no charge
electron negatively charged particles in an atom; in orbitals around the nucleus
atomic number identifies the element; number of protons
atomic mass number number of protons plus neutrons in the nucleus
isotope atoms with the same number of protons, different number of neutrons
group vertical column in the periodic table
period horizontal row in the periodic table
metal most elements of the periodic table; generally shiny, opaque, malleable
metalloid one of six elements with properties of both metals and non-metals
non-metal element that is not malleable, not ductile, poor conductor
Created by: bhs