Periodic table crossword

Edit Answers
12345678910111213141516171819
Across
  1. 4. 20th element of the periodic table
  2. 8. P
  3. 10. The atom with the smallest size in the periodic table
  4. 13. chloride NaCl
  5. 15. S
  6. 16. 6th element of the periodic table
  7. 18. Neon
  8. 19. H2O
Down
  1. 1. when the elements bond chemically we call it
  2. 2. Si
  3. 3. when 2 or more elements are mixed together but not chemically bonded
  4. 5. third element of the periodic table
  5. 6. Ar
  6. 7. Second element of the periodic table
  7. 9. Na
  8. 11. 9th element of the periodic table
  9. 12. 5thelement of the periodic table
  10. 14. Who invented the periodic table (Hint:Dmitri __________)
  11. 17. The gas we breathe with
  12. 18. Nickel