science puzzle

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Across
  1. 3. large electronegative
  2. 5. unequal
  3. 7. lose positive charge
  4. 8. electron's highest available energy levels
  5. 9. when rxn doesn't finish
  6. 11. amount of matter
  7. 13. gain a charge
Down
  1. 1. table chart of elements
  2. 2. equal sharing
  3. 4. mass matter in an atom
  4. 6. how fast something happens
  5. 10. atoms with a charge
  6. 12. bonds form by electronic force