Elements Crossword

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Across
  1. 3. Non-flammable noble gas that makes up just under 1% of Earth’s atmosphere
  2. 6. Found in pools
  3. 7. Found in fruits and vegetables like bananas, apricots, spinach, and potatoes
  4. 12. Has “C” as a periodic symbol
  5. 14. Makes balloons float
  6. 15. Seeds, nuts, and legumes contain a lot of this element
  7. 16. The first element of the periodic table
  8. 17. Flammable solid found in the second group and second period of the periodic table of elements
  9. 19. Makes up more than half of the atmosphere's gas
  10. 20. Highly reactive element found in DNA, RNA, and ATP
Down
  1. 1. Metalloid with fourteen protons
  2. 2. Dairy products like milk contain this element
  3. 4. Provides the saltiness in salt
  4. 5. Element number ten on the periodic table
  5. 8. Highly reactive gas that is in the air we breathe
  6. 9. Commonly found in toothpaste, the ninth element
  7. 10. Has the highest boiling point of the metalloids and five protons
  8. 11. When mixed with hydrogen, this element creates a “rotten egg” smell
  9. 13. Recyclable soft metal often found in tin foil
  10. 18. Has three protons and three neutrons