The Elements

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Across
  1. 2. in group 11 with an atomic number of 29
  2. 3. it has 11 electrons
  3. 5. name of a tech-valley
  4. 7. it has 19 electrons
  5. 8. atomic number is 35
  6. 9. has an atomic mass of 40.08
  7. 10. Alkali metal, is used as drilling fluid
  8. 14. Colts blue
  9. 18. atomic number is 32
  10. 20. double 14 (not 28)
  11. 22. third in column 13
  12. 24. this element is atomic number 28
  13. 25. atomic number = 3 x 11
  14. 30. this element starts the actinides
  15. 32. Superman’s weakness (kinda)
  16. 33. what medals are made out of when you get first place
  17. 34. group 8, period 4
  18. 37. it shares properties with sulfur and tellurium
  19. 38. this element is the lightest element to break the order of increasing atomic mass
  20. 41. in the same group as Al, Ga, In, Tl, Nh
  21. 42. period 6, group 18
  22. 43. sounds like the name of the famous general of Prussia that helped unite Germany
  23. 46. smells like rotten eggs and is yellow
  24. 47. it has 10 protons
  25. 48. used to make balloons float
  26. 49. it has 3 protons
Down
  1. 1. column 16
  2. 2. it shares the first 3 letters with the company that made the Coupe de Ville
  3. 4. metallic element commonly used in implants
  4. 6. this element is in group 16
  5. 11. atomic symbol is Es with a 254 atomic mass
  6. 12. liquid at room temperature in group 12
  7. 13. none of the letters in its symbol are in the element’s actual name
  8. 15. the element between strontium and radium
  9. 16. the girl in Polar Express gets a note with this word
  10. 17. inner transition element, reason they are called lanthanides
  11. 19. has an atomic number of 12
  12. 21. it’s the only nonmetal in group 14
  13. 23. can be mixed with water to purify water
  14. 26. can bond with sodium to make table salt
  15. 27. the element has 2 valence electrons and a mass number of about 9u
  16. 28. it’s the only gas in group 15
  17. 29. element 3 periods above Seaborgium
  18. 31. it’s a noble gas in period 3
  19. 35. atomic number 50, symbol Sn
  20. 36. find iodine and go up three
  21. 39. this element is period 5, group 7
  22. 40. named after the guy who made the planetary model
  23. 44. the element in group 6 and period 6
  24. 45. it’s a foil that the Brits can’t pronounce correctly