The Atom and Electricity

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Across
  1. 2. the pressure from an electrical circuit's power source.
  2. 4. an elementary particle that carries a positive charge.
  3. 5. the rate at which electrons flow past a point.
  4. 9. the smallest particle of an element.
  5. 10. an elementary particle that carries a negative charge.
  6. 12. A material that restricts the flow of electric current.
  7. 13. the positively charged central portion of an atom.
Down
  1. 1. a device that converts chemical energy to electrical energy.
  2. 3. the unit for voltage.
  3. 5. a material that permits an electric current to flow easily.
  4. 6. the unit of electric current.
  5. 7. a form of energy resulting from the existence of charged particles.
  6. 8. A substance consisting of a single type of atom.
  7. 11. an uncharged elementary particle that has a mass nearly equal to that of the proton.