Crossword Puzzle Review for Atomic Structure

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Across
  1. 2. when a substance is heated in a flame, the atoms __ energy from the flame
  2. 5. Atoms are mostly ____
  3. 8. made up of protons and neutrons; marbles represented ______
  4. 10. depends on the number of protons, neutrons, and electrons
  5. 12. the first shell that can hold electrons
  6. 13. number of electrons in an element
  7. 14. facts and statistics collected together for reference or analysis
  8. 15. minimum amount of energy that can be gained or loss by an atom
  9. 20. _____=(wavelength)x(frequency)
  10. 21. a unique upper-case letter followed by a lower-case letter
  11. 22. we converted ___ to meters; 1m=10^9_
  12. 26. a solid 3D round figure that never stays flat
  13. 28. negative charge
  14. 29. specific element in the Periodic Table of Elements
  15. 30. Each element's AES is ____ and can be used to identify it
  16. 34. the end statement of all the data and facts
  17. 36. Atoms can absorb energy and become ____
  18. 37. atoms with a negative charge have more electrons than protons are ____
  19. 38. consist of wavelength and frequency
  20. 39. An electron makes a ____ from a higher energy level to a lower energy level
  21. 40. Atoms are made up of ____ particles
  22. 41. atoms with the same number of protons but different numbers of neutrons
  23. 43. the ____ of protons, neutrons, and electrons
Down
  1. 1. a straight line that passes through the center of a circle is _____
  2. 3. We _____ marbles in the goil foil experiment to represent atoms
  3. 4. positive charge
  4. 6. an atom that has gained or lost one or more electrons; has a net electricalcharge
  5. 7. has a net charge of 0
  6. 8. neither positive nor negative
  7. 9. forces are unbalanced; excess amount of protons or neutrons
  8. 11. When a substance is heated, ____ can be used to determine color
  9. 16. neutral charge
  10. 17. number of protons+neutrons add up to make the ____
  11. 18. Everything is made up of ____!
  12. 19. are usually at ground state (lowest energy possible)
  13. 23. The energy emitted determines the frequency of ____
  14. 24. the electrons move from their excited state to an ____ state
  15. 25. Below a certain frequency, no electrons will eject no matter the ____ of the light
  16. 27. a tiny object made entirely of protons and neutrons
  17. 28. atoms with different numbers of protons are different _____
  18. 31. waves per second
  19. 32. heat source used to heat substances
  20. 33. amplitude, ______, crest, trough
  21. 35. atoms with a positive charge have fewer electrons than protons are ____
  22. 42. %____=I measured-accepted/accepted I x 100