Chemistry CW 3

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