Chemistry

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Across
  1. 3. everything
  2. 5. Negative charge
  3. 7. Multiple atoms
  4. 9. neutral charge
  5. 11. Two or more elements combined
Down
  1. 1. building blocks of everything
  2. 2. Elements are in it
  3. 4. The things on a periodic table.
  4. 6. Centre of atoms and cells
  5. 8. Positive charge
  6. 10. Mix of 2 elements