Group 6A of Periodic Table

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Across
  1. 2. At what temperature does oxygen combine with other element?
  2. 3. Group 6A in periodic table is also called __________
  3. 5. Tellurium is used as _____ agent in ceramics
  4. 10. Polonium is a _________ metal
  5. 11. All elements in group 6A are in state of ____ except for Oxygen
  6. 14. Which element dissolves in most acid and some alkalis but not in water?
  7. 15. Which element is used for cell respiration?
  8. 16. Group 6A elements have 6 ___________ electron
  9. 17. Selenium is used for ______ production
  10. 19. Sulfur is present in ________
Down
  1. 1. Tellurium is a ________ white solid with a shiny surface
  2. 4. Oxygen, sulfur and selenium are ________
  3. 5. Sulfur is used for formation of ______
  4. 6. Antonie Laurent ____ discovered oxygen independently in 1774
  5. 7. Which element is used to remove dust on photograph?
  6. 8. The name polonium was given by its founders after their homeland in ________
  7. 9. Reactivity ______ as you go down the elements of group 6A
  8. 12. Tellurium has _______ point 989.9 degree Celcius
  9. 13. Sulfur burns and gives off pale ____ flame
  10. 18. Selenium reacts with ____ acid and sulfuric acid