Basic terms and principles of electricity

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Across
  1. 2. It is formed by protons and neutrons
  2. 4. Eectrons which can be drawn away from the atom
  3. 5. Movement of electrons towards specific direction
  4. 6. Materials that resist current flow
  5. 7. The smallest particle of an element
  6. 9. The electrons do that around the nucleus
  7. 12. Materials that conduct current
  8. 13. The electric charge of electrons
Down
  1. 1. Opposition to current flow
  2. 3. The force produced by generators, batteries
  3. 8. Atoms are made up of electrons, protons and ....
  4. 10. The electric charge of protons
  5. 11. The difference in electrical pressure
  6. 14. They are used to measure intensity of current