Nucleus - This part of the atom contains protons and neutrons., Mass number - # protons + # neutrons (whole number), Neutron - A subatomic particle with no charge (zero)., Atomic mass - The average mass of all the isotopes of an element., Neutrons - # of _________ = Mass # - Atomic #, Proton - A subatomic particle with a positive charge., Electrons - In a neutral atom, # of protons = # of _________, Atomic number - This number equals the number of protons and denotes its identity., Electron - A subatomic particle with a negative charge., Protons - # of __________ = Atomic #, Symbol - one or two-'letter' abreviation for an element, Element Name - Least important information on the Tile,

Atomic Structure & Element Tile Information Crossword

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