Atomic Theory

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Across
  1. 4. drop experiment to find charge and mass of the electron
  2. 5. substance that cannot be broken down into a smaller substance
  3. 6. the scientist who invented the "Billiard Ball Mode"
  4. 7. a chemical bond of two elements
  5. 8. means atom in greek
  6. 9. a mathematical expression to find the wave function
  7. 11. atom or molecule that gained or lost an electron
  8. 13. the sum of protons and neutrons on the periodic table
  9. 14. same element, different mass
  10. 16. Subatomic particle with a negative charge
  11. 17. subatomic particle with a positive charge
Down
  1. 1. chemist that discovered the orbital model
  2. 2. who discovered the electron
  3. 3. electrons at the out edge of the shell
  4. 10. The scientist that discredited Leucippus and Democritus
  5. 12. rejected the idea of only four elements
  6. 15. Subatomic particle with a neutral charge