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Science 7 4-1

QuestionAnswer
atom smallest particle of an element
electron negative charge
electron outside of nucleus
nucleus center of atom
proton positive charge
proton inside nucleus
neutron no charge
neutron inside nucleus
atomic number number of protons
mass number (atomic mass) sum of protons and neutrons
period horizontal rows
group vertical columns
family another name for group
atomic number how modern periodic table is arranged
groups elements in them have similar characterisitics
chemical symbol one or two letters given to each element
neutral charge of an atom in natural state
Created by: jmeager
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