Chemistry: Periodic Table

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Across
  1. 2. Not good of heat and electricity_______
  2. 4. The most powerful tool chemists have for organizing chemical info_______
  3. 6. A vertical column of elements is called a_________
  4. 7. The elements in a group have similar_________
  5. 9. Above the chemical symbol________
  6. 11. each element has a unique atomic number thats the number of___________
  7. 15. the seven horizontal rows are called______________
  8. 16. Found on the upper right of the periodic table___________
  9. 17. Moseley listed numbers in increasing order________
  10. 19. fewer than_______ had been discovered in mid 1800's
  11. 20. A one to two letter chemical_______
Down
  1. 1. You can find metals on the________
  2. 3. Below the symbol are names of its element and_________
  3. 5. number Listed on period table from increasing_______
  4. 8. Each element is represented by one________
  5. 10. You can predict a lot about the chemical________
  6. 12. What makes the periodic table really invaluable________
  7. 13. Found on the upper left of periodic table___________
  8. 14. have similar valence_______
  9. 18. Most elements are________