Atomic Structure Exam Review

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Across
  1. 2. hydrogen isotope with no neutrons (bean lab)
  2. 4. electrons on third level max
  3. 8. represented by "A"
  4. 10. discovered the nucleus
  5. 11. discovered the neutron
  6. 13. makes up 99.9% of atom's mass
  7. 14. electrons in outer shell
  8. 15. put electrons on energy levels
  9. 16. discovered the electron
  10. 17. atoms of same element w/ same atomic numbers but different mass numbers
  11. 21. name of a carbon atom w/6 protons & 8 neutrons
  12. 22. atomic theory
  13. 24. "N" in MAN
  14. 25. discovered the proton
  15. 26. modern periodic table
Down
  1. 1. hydrogen isotope with two neutrons (bean lab)
  2. 3. hydrogen isotope with one neutron (bean lab)
  3. 5. electrons on fourth level max
  4. 6. name of a fluorine atom w/9 protons & 11 neutrons
  5. 7. what atoms gain or lose to become ions
  6. 9. represented by "Z"
  7. 12. "atomos"
  8. 17. charged atom
  9. 18. first periodic table
  10. 19. protons and neutrons
  11. 20. electrons on first level max
  12. 23. "P" in APE
  13. 27. electrons on second level max