Periodic Table Crossword!

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Across
  1. 1. the smallest particle for an element
  2. 4. having very little color
  3. 7. a minuture part of matter
  4. 8. where all the elements are placed in order
  5. 9. the symbol is (+)
  6. 10. the symbol is (-)
  7. 11. number of protons in the nucleus of an atom
  8. 12. the symbol is (o)
  9. 13. a molecule that never been mixed
  10. 15. a shorter version of the name
  11. 16. a bright color that people wear
  12. 17. the central and most important part of a object
Down
  1. 2. it is solid,liquid,and gas
  2. 3. another word for atoms
  3. 5. a pattern of elements
  4. 6. how heavy the object is
  5. 7. used to characterize matter
  6. 11. a bigger amount of matter with no shape
  7. 13. when you have different atoms
  8. 14. what we breathe