Periodic Table

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Across
  1. 4. Chemical symbol:Ag
  2. 6. Chemical symbol:N
  3. 11. A mixture that can be easily separated
  4. 12. Chemical symbol:He
  5. 15. An uppercase letter or uppercase and lowercase letter that represents an element on the Periodic Table.
  6. 17. Chemical symbol:Au
  7. 18. A mixture that is uniform through out
  8. 19. Russian chemist credited with creating the first Periodic Table
Down
  1. 1. Chemical symbol:Cl
  2. 2. Chemical Symbol:S
  3. 3. Atomic mass:173.045 atomic mass units
  4. 5. Two or more atoms chemically combined
  5. 7. Chemical symbol:O
  6. 8. Chemical Symbol:K
  7. 9. Shows you what elements and how many of each are in a compound
  8. 10. Chemical symbol:Fe
  9. 13. Two or more elements chemically combined
  10. 14. Chemical Symbol:Ne
  11. 15. Chemical symbol:C
  12. 16. Cannot be broken down further, makes up the Periodic Table