Periodic Table of Elements

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Across
  1. 2. Bananas have...
  2. 7. I am a gas with 8 protons and 8 electrons
  3. 8. I am found in teeth and bones (20)
  4. 10. My atomic mass is 30.97
  5. 11. I have 36 protons
  6. 12. I am a noble gas my atomic number is 10
  7. 13. My atomic number is 4
  8. 14. 2nd place gets this kind of medal
  9. 16. I am poisonous (As)
  10. 18. I am the basis of life
Down
  1. 1. The symbol is F
  2. 3. I am a metal that is liquid at room temperature
  3. 4. My atomic number is 79
  4. 5. I have one proton
  5. 6. I smell like rotten eggs
  6. 9. My atomic mass is 35.453
  7. 15. The symbol is Fe
  8. 17. I am a metal with 28 electrons