Periodic Table of Elements

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Across
  1. 5. it is a bright form of many colors, and it is used to make those cool signs that light up.
  2. 6. this material is used in many explosives, including fireworks, matches, and gunpowder. It is often found in a yellow, smelly crystal form.
  3. 10. it is 21% of the air we breathe in.
  4. 11. in jewelry and dental fillings
  5. 14. this element is also a video game.
  6. 16. has the symbol FE
  7. 18. metal used in surgical and dental instruments and implants because it causes no immune reaction
  8. 19. has the symbol Sc
  9. 22. used to make toothpaste and is in drinking water. Helps prevent tooth decay.
  10. 24. used in photographic flashes, used to detect radiation.
  11. 25. has the symbol Sg
  12. 27. it makes up most of the Statue of Liberty
  13. 30. it is 78% of the air we breathe in, and it is very cold in liquid temperature.
  14. 33. used to treat victims exposed to radiation
  15. 34. has the symbol Db
  16. 35. is the fifth element in group 2
  17. 37. has a constant volume but not a constant shape.
  18. 39. has the symbol Nb
Down
  1. 1. is the lightest element in the periodic table
  2. 2. it was used in coins before 1965
  3. 3. firm and stable in shape; not liquid or fluid.
  4. 4. superman was born there, and it makes a substance that is his weakness.
  5. 7. it burns as a green color, used in flares and as a rocket fuel ignitor
  6. 8. imagine dragons made a song about it
  7. 9. named after president Rutherford
  8. 12. is used in batteries
  9. 13. used to make compounds like strontium nitrate
  10. 15. starts with bro, and it is used in flame proofing agents.
  11. 17. is used in steel
  12. 18. it is used to make cans
  13. 20. contains an equal number of protons but different number neutrons
  14. 21. is found in bananas.
  15. 23. in nearly every biological aspect of the human body....part of what you breathe out
  16. 26. makes bullets
  17. 28. is highly radioactive and has the atomic number 88
  18. 29. It was formerly known as eka-caesium and actinium K.
  19. 31. does not have a constant volume or shape.
  20. 32. a certain coin is made of 25% of this element.
  21. 36. shiny metal everyone loves
  22. 38. is an atom or molecule in which the total number of electrons is not equal to the total number of protons.