The Elements

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Across
  1. 3. smells like rotten eggs and is yellow
  2. 5. third in column 13
  3. 7. it has 19 electrons
  4. 9. find iodine and go up three
  5. 10. used to make balloons float
  6. 14. this element is period 5, group 7
  7. 15. in group 11 with an atomic number of 29
  8. 16. this element is the lightest element to break the order of increasing atomic mass
  9. 17. atomic number is 35
  10. 19. it’s a noble gas in period 3
  11. 21. it shares properties with sulfur and tellurium
  12. 22. Colts blue
  13. 26. atomic number is 32
  14. 27. period 6, group 18
  15. 29. this element starts the actinides
  16. 30. this element is in group 16
  17. 32. atomic symbol is Es with a 254 atomic mass
  18. 35. column 16
  19. 37. can bond with sodium to make table salt
  20. 39. name of a tech-valley
  21. 40. it has 11 electrons
  22. 43. liquid at room temperature in group 12
  23. 44. the element between strontium and radium
  24. 46. the girl in Polar Express gets a note with this word
  25. 47. atomic number 50, symbol Sn
  26. 48. it has 10 protons
Down
  1. 1. atomic number = 3 x 11
  2. 2. the element has 2 valence electrons and a mass number of about 9u
  3. 4. it’s the only nonmetal in group 14
  4. 6. sounds like the name of the famous general of Prussia that helped unite Germany
  5. 8. none of the letters in its symbol are in the element’s actual name
  6. 11. it has 3 protons
  7. 12. Superman’s weakness (kinda)
  8. 13. named after the guy who made the planetary model
  9. 15. it shares the first 3 letters with the company that made the Coupe de Ville
  10. 18. it’s a foil that the Brits can’t pronounce correctly
  11. 20. what medals are made out of when you get first place
  12. 23. solid, atomic number of 22, metallic element commonly used in implants
  13. 24. has an atomic mass of 40.08
  14. 25. can be mixed with water to purify water
  15. 28. element 3 periods above Seaborgium
  16. 31. inner transition element, reason they are called lanthanides
  17. 33. it’s the only gas in group 15
  18. 34. the element in group 6 and period 6
  19. 36. this element is atomic number 28
  20. 38. Alkali metal, has an atomic number of 55, and is used as drilling fluid
  21. 41. in the same group as Al, Ga, In, Tl, Nh
  22. 42. group 8, period 4
  23. 45. has an atomic number of 12