Atomic Theory

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Across
  1. 3. dense core made of protons and neutrons in the center of an atom
  2. 5. indivisible units of matter
  3. 7. electron locations cannot be ___
  4. 11. negatively charged particles
  5. 14. mathematical way to express the charge of electron
  6. 15. particles with no charge
  7. 16. energy levels are ___
Down
  1. 1. positively charged particle
  2. 2. science is a ___
  3. 4. electrons live in __ not distinct orbits
  4. 6. likelihood of finding an electron in a location
  5. 8. discovered electrons
  6. 9. discovered protons
  7. 10. father of the atomic theory
  8. 12. discovered neutrons
  9. 13. created a quantum mechanical model