Atomic Theories and Models

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Across
  1. 4. Aristotle rejected his idea resulting in the slow of atomic theory for 2,000 years.
  2. 7. A chemical _____ is a rearrangement of atoms
  3. 9. Aristotle's 4 elements were wrong because it was impossible to ____ any of them.
  4. 10. Who expanded upon the Bohr model?
  5. 11. Who came up with the revolutionary idea that electrons lined up in a regular pattern
  6. 13. Discovered the neutron
  7. 14. Claimed there were only four elements
  8. 15. Discovered the electron
  9. 16. The Quantum Mechanical Model _____ the electrons location
  10. 17. Is another name for Rutherford's model
  11. 20. Is the "body much smaller than an atom".
Down
  1. 1. _____ of rays by electronically charged plates was evidence for "bodies much smaller than atoms".
  2. 2. Preformed the gold foil experiment
  3. 3. What Dalton thought an atom was like
  4. 5. Rutherford says the nucleus is 10,000 times _____ than the atom.
  5. 6. Heisenberg's ____ Principle
  6. 8. The oil drop experiment discovered the charge and mass of the ___.
  7. 9. The high-vacuum ____-ray was used to discover the electron
  8. 12. Preformed the oil drop experiment
  9. 18. Greek for indivisible
  10. 19. Daltons Atomic Theory says that all ____ of a given element are identical in mass and volume