Physical Science (periodic table)

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Across
  1. 2. have a positive charge
  2. 5. have a negative electrical charge
  3. 6. vertical sections of the periodic table
  4. 9. the total of protons and neutrons
  5. 10. made first semi-accurate model of atomic structure
Down
  1. 1. often used to scale things too small/big
  2. 3. have no electrical charge
  3. 4. atom that carries an electrical charge
  4. 7. horizontal sections of the periodic table
  5. 8. protons verses electrons