Chapter 10 Modern Atomic Theory and the Periodic Table

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Across
  1. 2. Electrons and protons ____ one another.
  2. 4. Basic characteristics of waves are: ______, frequency, and speed
  3. 7. When the light emitted by a gas passes through a prism or diffraction grating, the set of brightly colored lines are called a (TW)
  4. 10. A _______ is emitted when white light passes through a prism.
  5. 11. The elements of a family have the same _______ electron configuration except that the \
  6. 14. _____ is the orbital configuration of electrons in an atom (TW)
  7. 15. “An atomic orbital can hold a maximum of two electrons, which must have opposite
  8. 17. The number at the beginning of an electron configuration shows the _______ energy level (example: 2p5)
  9. 19. When the wavelengths are ______, the energy of light is higher.
  10. 22. The letter in an electron configuration shows the type of (example: 2p5)
  11. 25. Principle energy levels are divided into
  12. 26. Longest wavelength
  13. 27. The raised number at the end of an electron configuration shows the number of _______ in sublevel orbitals
  14. 31. Elements that behave in similar ways are found in ______ or groups
Down
  1. 1. For an electron to move from an energy level far from the nucleus, it would need to ____ energy
  2. 2. When an electron moves away from the nucleus energy is ______
  3. 3. Light is ______ in the electron transition
  4. 5. The electrons in the outermost (highest) energy level of an atom (TW)
  5. 6. The lowest available energy level is the
  6. 8. Each horizontal row in the periodic table is called a ______
  7. 9. The spectrum may have the same colors but each _______ is different.
  8. 12. is called the _______ exclusion principle
  9. 13. Who discovered that electrons exist in specific regions at various distances from the nucleus?
  10. 16. No more than _____ electrons can occupy an electron
  11. 18. _____ are a stream of tiny packets of energy
  12. 20. The third principal energy level has ______ sublevels
  13. 21. The number of the period (on the periodic table) corresponds with the ______ energy level occupied by electrons in that period
  14. 23. When the wavelengths are _______, the energy of light is lower.
  15. 24. are in different energy levels
  16. 28. is how fast a wave moves through space
  17. 29. A continuous stream in small discrete packets _____
  18. 30. Shortest wavelength