Elements and Atoms

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Across
  1. 3. color of mercury
  2. 4. element that is used in compound to makes sparks
  3. 6. element that sign in purple color (look at the periodic table in your book)
  4. 10. the property of group I and II in periodic table
  5. 12. red-brown liquid
  6. 14. element that gives red spark in firework
  7. 16. substances that made from two or more elements that are joined together
  8. 18. discoverer of Yttrium
  9. 20. element that needed to breathing
Down
  1. 1. element that discovered in 1868
  2. 2. element that has atomic number 10
  3. 5. one of the elements that found in the sun
  4. 7. a substance that cannot be broken down into simpler components by any non-nuclear chemical reaction
  5. 8. the first chemist
  6. 9. the color of boron
  7. 11. symbol of tin
  8. 13. smallest part of matter
  9. 15. symbol of magnesium
  10. 17. the first element that discovered
  11. 19. an element in noble gas