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4 Cards in this Set

  • Front
  • Back

protons

a subatomic particle that has a positive charge and is to be found in the nucleus

atomic mass unit

a unite of mass that describes the mass of an atom

nutron

a subatomic particle that has no charge and that is found in the nucleus of a atom

atomic number

the number of protons of a atom the atomic number is the same for all atoms of a element