Atomic History

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Across
  1. 3. compounds having the same molecular formula but different structures are called _______
  2. 5. the lowest possible ratio of the elements in a compound is called it's __________ formula
  3. 9. two atoms with the same number of protons but a different number of neutrons are called ________
  4. 10. the f orbitals can hold a total of ______ electrons
  5. 12. with the correct amount of energy an electron can move from the ground state to the ________ state
  6. 14. to become negative an element must _______ electrons
  7. 17. electrons in the outer s and p orbitals
  8. 18. the speed of light is equal to frequency times _________
  9. 19. in seven moles of water there are _______ moles of hydrogen
  10. 21. thomson used a _______ tube in his experiments
  11. 23. there are _____ d orbitals
  12. 24. the rule that proposed all elements want eight electrons in the outer s and p orbitals
  13. 26. the electronegativity ______ as you move up in a family
  14. 27. in a neutral atom the number of _______ equals the number of protons
  15. 30. the desire for an element to gain an electron
  16. 31. Bohr's model of the atom was also called the ______ model
  17. 33. the most electronegative element on the periodic chart
  18. 34. high energy waves have ________ wavelengths
  19. 35. each orbital can only hold _____ electrons
Down
  1. 1. proposed the BB model of the atom
  2. 2. the lines of light specific to an element are called it's _________
  3. 4. light is part of the _________ spectrum
  4. 6. when two different elements have the same electron configuration
  5. 7. oil drop experiment
  6. 8. the law that states all compounds have a fixed and constant ratio of it's elements is the law of ________ proportions
  7. 11. orbitals that have the same energy
  8. 13. proposed new model of atom based on light spectra
  9. 15. the sum of protons and neutrons is called the ______ number
  10. 16. the atomic radius ______ moving left to right in a period
  11. 19. energy is equal to Planck's constant times ______
  12. 20. discovered electrons
  13. 22. to count atoms you use _____
  14. 25. low frequency waves have _______ long wavelengths
  15. 28. performed the gold foil experiment
  16. 29. atomic number equals number of _________
  17. 31. a quantum of light
  18. 32. ionization energy decreases as you move _______ in a family