Chemistry Atomic Structure Crossword Puzzle

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Across
  1. 1. atomic number of sodium
  2. 4. what atoms are mostly made up of
  3. 7. wavelength region from 400 to 700nm
  4. 11. atomic number of krypton
  5. 12. element that consists of 10 protons, electrons, and neutrons with a mass number of 20
  6. 14. the position and the velocity of an object cannot both be measured exactly
  7. 17. element with atomic number of 85
  8. 20. element that consists of 6 electrons, neutrons, and protons with mass number of 12
  9. 22. atomic number of hydrogen
  10. 24. atoms with a negative charge that have fewer protons than electrons
  11. 25. amount of matter in solid object
  12. 26. element with atomic number of 58
  13. 28. property of matter containing more or less protons/electrons
  14. 29. minimum amount of energy that can be gained or lost by an atom
  15. 31. outside part of atom around atomic nucleus
  16. 35. what atoms become gain electrons become
  17. 37. the distance between any given point and the same point in the next wave cycle
  18. 39. planck's constant*frequency
  19. 42. the rate of change of position of an object in any direction
  20. 43. made up of subatomic particles
  21. 46. relationship between frequency and wavelength
  22. 47. atomic number of calcium
Down
  1. 1. atomic number of francium
  2. 2. element with atomic number of 69
  3. 3. nonradioactive form
  4. 5. atomic number of selenium
  5. 6. particle with positive charge
  6. 8. total number of protons and neutrons
  7. 9. when atoms absorb energy
  8. 10. what atoms that lose electrons become
  9. 13. the number of times a point on a wave passes a fixed reference point in one second
  10. 15. two protons and two electrons tightly bound together
  11. 16. element with atomic number of 23
  12. 18. abbreviations used in chemistry for chemical elements
  13. 19. particle with negative charge
  14. 21. same number of electrons and protons
  15. 23. element that consists of 5 electrons, neutrons, and protons with a mass number of 10
  16. 27. colors in order of frequency, from least to greatest
  17. 30. element that has the same number of protons but different numbers of electrons
  18. 32. a table of the chemical elements arranged in order of atomic number
  19. 33. element with atomic number of 86
  20. 34. atoms with a positive charge that have fewer electrons and protons
  21. 36. fewer or more electrons in an atom
  22. 38. the center of an object made entirely of protons and neutrons
  23. 40. wavelength*frequency
  24. 41. a subatomic particle of about the same mass as a proton but without an electric charge
  25. 44. radioactive form
  26. 45. letter z is used to represent it