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Trenton Stefan

TermDefinition
Periodic Table an arrangement of elements in columns, based on a set of proportions that repeat from row to row
Period each row in the table of elements
period law the pattern of repeating properties properties
atomic mass unit defined as one twelfth the mass of a carbon-12 atom
metals elements that are good conductors of electric current or heat
nonmetals elements that are poor conductors of heat and electric current
metalloids elements with properties that fall between those of metals and nonmetals
valence electron an electron that is in the highest occupied energy level of an atom
alkali metals the elements in group 1A
alkali earth metals the elements in group 2A
Halogens The elements in group 7A
noble gases the elements in group 8A
group each column on the periodic table
transition metals the metals in group 3 through 12
Created by: trenton.stefan
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