Chemistry CW 3

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Across
  1. 3. A positively charged subatomic particle located at the center of an atom.
  2. 6. Area around an atomic nucleus where an electron is most likely to be found.
  3. 11. Cd
  4. 13. P
  5. 18. Pb
  6. 21. matter that has a definite volume and a definite shape
  7. 22. occurring without external force or cause
  8. 23. Ti
  9. 24. I
  10. 25. Two or more atoms bonded together.
  11. 27. C
  12. 29. N
  13. 34. B
  14. 37. change of state from a gas to a liquid
  15. 40. Fe
  16. 41. vaporization that occurs only at the surface of a liquid
  17. 43. Zn
  18. 46. U
  19. 48. Rh
  20. 49. Be
  21. 50. Cr
  22. 51. O
  23. 53. Na
  24. 54. sum of the number of protons and neutrons in an atom
  25. 56. Ne
  26. 58. change of state of a liquid into a gas
  27. 59. decay process that occurs when an unstable atomic nucleus changes into another more
  28. 60. Mn
  29. 61. any of two or more atoms of the same element that have different numbers of neutrons
  30. 64. Li
  31. 65. Zr
  32. 66. F
  33. 68. Kr
  34. 69. The basic unit of an element. All matter is made up of atoms.
Down
  1. 1. Co
  2. 2. A chart of all known elements that scientists reference when working with atoms or molecules.
  3. 4. Hg
  4. 5. Au
  5. 6. A subatomic particle of an atom that is negatively charged and orbits the nucleus extremely fast.
  6. 7. Nd
  7. 8. S
  8. 9. Al
  9. 10. Bi
  10. 11. Cl
  11. 12. gas state of a substance that is normally a solid or a liquid at room temperature
  12. 14. Ag
  13. 15. H
  14. 16. Anything that has mass and takes up space.
  15. 17. matter that has no definite volume and no definite shape
  16. 19. A subatomic particle with no charge located at the center of an atom.
  17. 20. Ar
  18. 26. Ca
  19. 28. the number of protons in an atom of an element
  20. 29. Protons and neutrons clump together at the center of an atom to form the nucleus of an atom.
  21. 30. Xe
  22. 31. Ba
  23. 32. Sn
  24. 33. Br
  25. 35. As
  26. 36. Pt
  27. 38. Cu
  28. 39. Mg
  29. 42. Ni
  30. 44. atom that is no longer neutral because it has gained or lost electrons
  31. 45. matter with a definite volume but no definite shape
  32. 47. Ga
  33. 52. describes elements that spontaneously emit radiation stable nucleus by emitting radiation
  34. 55. He
  35. 57. K
  36. 62. W
  37. 63. Si
  38. 67. Rn