Clone of Atomic History

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Across
  1. 3. elements are extremely small particles called ____.
  2. 10. In thomson's model the atom is a ____ sphere studded with negative electrons
  3. 11. Erwin _____ was one of the scientist to discover our current model of the atom
  4. 12. theorized that everything is eventually uncuttable
  5. 15. at the center of Rutherford's model.
  6. 17. Greek word meaning indivisible
  7. 18. atoms cannot be _____ or destroyed
Down
  1. 1. ______model: dalton's model
  2. 2. _________ model: predicts an area where electrons are likely to be.
  3. 4. discovered the electron via the cathode ray tube
  4. 5. (Last Name) discovered the nucleus of the atom.
  5. 6. _____ model: electrons orbit the nucleus and set energy levels.
  6. 7. ____experiment used to discover the electron.
  7. 8. Part of Werner's discovery: you can either know an electron's ______ or speed but not both.
  8. 9. (First Name) shot alpha particles at a thin sheet of gold foil.
  9. 13. _______ model: JJ Thomson's model of the atom.
  10. 14. (Last Name)determined when electrons lose their energy they drop energy levels.
  11. 16. part of Dalton's Atomic Theory: atoms of the ____ element are the ____.