science

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Across
  1. 3. 2 combining to make a compound
  2. 4. atomic number 28
  3. 7. something replacing twice
  4. 9. atomic number 26
  5. 11. ele_____
  6. 12. single particle
  7. 13. in the middle of metals and non metals
  8. 14. something replacing once
  9. 15. +
Down
  1. 1. 0
  2. 2. table with all the elements
  3. 5. 2 substances
  4. 6. atomic number 13
  5. 8. -
  6. 10. a non version of metals
  7. 13. a material used for stuff