Electrons in Atoms (Ch. 9) Crossword Puzzle

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Across
  1. 5. Orbitals of identical energy are first each occupied with a single electron with parallel spins rather than being filled in pairs
  2. 7. Greek symbol used for wavelength
  3. 9. number of 3d orbitals
  4. 10. When the elements are arranged in order of increasing number of protons, certain sets of properties recur ____________.
  5. 12. Electrons fill the lowest energy orbitals first
  6. 15. s, p, d, f
  7. 17. Microwaves, x-rays, and visible light are all forms of ___________.
  8. 18. Across a period (from left to right), atomic size _________.
  9. 19. Across a period (from left to right), ionization energy _________.
  10. 20. Electron moves in circular path
  11. 22. c = 3.00 x 108 m/s
  12. 24. More than one orbital has the same energy
  13. 25. Total number of orbitals for a phosphorus atom
Down
  1. 1. group with completely filled p orbitals
  2. 2. 3-D probability map
  3. 3. Fixed amount of energy
  4. 4. An orbital can only contain two electrons each with opposite spin
  5. 6. Electrons NOT in the outermost principle shell
  6. 8. d-block elements
  7. 11. Electrons in the outermost principal shell
  8. 13. The shorter the wavelength of light, the more ________ it has.
  9. 14. An excited state electron returns to the ________ when light is emitted from an atom.
  10. 16. The wavelength of visible light is often expressed in units of __________ .
  11. 21. [Ar]4s23d104p4
  12. 23. The color of light a green shirt does NOT absorb