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3 Written questions

3 Multiple choice questions

  1. the sum of the protons and neutrons in the nucleus of an atom
  2. move rapidly around the nucleus and have a negative charge
  3. have no charge and are found in the nucleus

2 True/False questions

  1. isotopesatoms with the same number of protons and a different number of neutrons

          

  2. nucleusthe very small center core of an atom