Chemistry Vocabulary Crossword

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Across
  1. 2. number, the first number above the elements symbol?
  2. 4. what group is aluminum in?
  3. 5. what does S stand for?
  4. 7. what is the negative charge of an atom?
  5. 10. when two or more atoms of substances combine?
  6. 12. what does Sn stand for?
  7. 13. what is the positive charge of an atom?
  8. 17. what group is oxygen in?
  9. 18. what is the one or two letters per element?
  10. 19. what does I stand for?
  11. 21. the rows going down across the periodic table?
  12. 22. what does Hg stand for?
  13. 23. what does C stand for?
  14. 28. what does Zn stand for?
  15. 29. what does Au stand for?
  16. 30. weight, the number in the bottom row of the element?
  17. 35. what does K stand for?
  18. 36. two or more different atoms in a mixture
  19. 37. what does Ag stand for?
  20. 38. what does N stand for?
Down
  1. 1. the extra electrons in the atom are called?
  2. 3. when the charge is zero for the atom?
  3. 6. when chemical equation is equal
  4. 8. what does Ne stand for?
  5. 9. the same atom mixture
  6. 11. what does Na stand for?
  7. 13. the rows going across the periodic table?
  8. 14. what group is helium in?
  9. 15. what does Ra stand for?
  10. 16. what material is helium?
  11. 20. what does B stand for?
  12. 24. what is the connection of multiple atoms?
  13. 25. what does Ni stand for?
  14. 26. what does Li stand for?
  15. 27. gas or liquid elements
  16. 31. solid elements
  17. 32. what is the middle part of the table called?
  18. 33. what does the symbols Fe stand for?
  19. 34. what does Cu stand for?