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3 Written Questions

3 Multiple Choice Questions

  1. move rapidly around the nucleus and have a negative charge
  2. the number of protons in its nucleus
  3. the sum of the protons and neutrons in the nucleus of an atom

2 True/False Questions

  1. modelmay be a diagram, a mental picture, a mathematical statement, or an object that helps explain ideas about the natural world.

          

  2. protonsatoms with the same number of protons and a different number of neutrons

          

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