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chemistry

terms in chapter 2

TermDefinition
valence shell the outermost shell of an atom
molecule what is formed when 2 or more atoms bond together
compound what is formed when atoms of 2 or more elements bond together
atomic number number of protons in an atom
mass number sum of protons and neutrons in the nucleus of an atom
neutron subatomic particle with out a charge
proton subatomic particle with a positive charge
electron subatomic particle with a negative charge
Created by: cfarris
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