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4 Cards in this Set

  • Front
  • Back
All atoms of a particular element have an identical number of ______
protons (identifying property- differs from element to element and determines the nature of the element)
Atomic Number
Symbol Z = the number of protons
Isotopes
atoms of a given element that differ in the number of neutrons, and consequently in mass
Mass Number
Symbol A = the sum of the protons and neutrons in the atoms of a particular isotope: A = #n° + #p+