Atomic Structure and Important People

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Across
  1. 2. It proposed that atoms havea tiny dense nucleus.
  2. 4. This is the whole number listed on the periodic table.
  3. 5. positively charged "pudding" with negatively charged electrons ("plums") embedded inside.
  4. 7. able to gain wide acceptance for his ideas on nature – which denied the existence of atoms.
  5. 9. Negative charge outside the nucleus
  6. 11. A Danish physicist who set about trying to solve the problems with Rutherford’s model.
  7. 13. Positive charge inside the nucleus
  8. 14. formulated a mathematical equation — the _______ Wave Equation — that describes how electrons behave as waves rather than particles in fixed orbits.
  9. 17. an ancient greek philosopher who proposed the idea that matter was not infinitely divisible.
  10. 18. violates the Heisenberg Uncertainty Principle, one of the cornerstones of quantum mechanics.
Down
  1. 1. The first provided model of an atom.
  2. 3. Performed the Gold Foil Experiment in 1908 to test Thomson’s model
  3. 6. The Father of Chemistry
  4. 8. he smallest particle of an element that has the properties of that element.
  5. 10. discovered electrons through cathode ray experiment
  6. 12. This represents the overall mass of your atom.
  7. 15. Performed the Oil Drop Experiment in 1909 and discovered that a single electron had a negative charge.
  8. 16. Neutral charge inside the nucleus with protons.