The Periodic Table

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Across
  1. 4. Dark grey crystaline solid or a purple vapour
  2. 5. Metals found in group 1
  3. 6. Dense poisonous, red-brown volatile liquid
  4. 8. Fairly Reactive, poisonous dense green gas
  5. 11. Man who came up with the first good attempt to arrange the periodic table
  6. 12. A column on the periodic table
  7. 15. What the modern Periodic Table is based on
  8. 17. Russian chemist who developed a periodic table of the chemical elements and predicted the discovery of several new elements (1834-1907)
  9. 18. Force that holds two or more atoms together
Down
  1. 1. Whats produced when alkalis react with water
  2. 2. Number of protons in nucleus of an atom
  3. 3. Non-metals with coloured vapours (Found in group 7)
  4. 7. Elements that make up the big clump of metals in the middle of the periodic table
  5. 9. Move around the nucleus
  6. 10. Member of group 1 (K)
  7. 13. Very Reactive, poisonous yellow gas
  8. 14. Member of group 1 (Na)
  9. 16. Formed between halogens and metals
  10. 19. Member of group 1 (Li)