Physics etymology

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Across
  1. 1. velocity
  2. 3. electron meaning
  3. 5. Physics
  4. 6. proton
  5. 8. electronegativity
  6. 10. proton
  7. 12. -nuclei- meaning
  8. 13. automon
Down
  1. 2. laboratory
  2. 4. kinetics
  3. 5. partical
  4. 7. neutrons
  5. 9. operation
  6. 11. Inertia