chemistry!

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Across
  1. 3. Decreasing concentration of a solute in a solution
  2. 6. Outermost electron shell
  3. 8. atom with less electrons than neutral
  4. 11. NO2
  5. 13. Bond involving the equal sharing of electrons
  6. 14. Reaction that forms water and carbon dioxide
  7. 17. Positively charges subatomic particle
  8. 18. Difference in electronegativity between two bonded atoms
  9. 19. electron geometry with 6 bond types and no lone pairs
  10. 21. Measurement for energy (force)
  11. 22. Periodic group containing Nitrogen and Phosphorus
  12. 26. Negatively charged particle surrounding the nucleus
  13. 27. Base unit for volume
  14. 29. electron geometry with 3 bond types and 1 lone pair
  15. 30. Periodic group preceding noble gases
  16. 32. The central atom in a Cl2SeO molecule?
  17. 33. Reaction that results in a solid from aqueous reactants
  18. 36. Moles of solute / volume of solution =
  19. 37. 6.626e10-34
  20. 38. Electron geometry with a 180 degree angle
Down
  1. 1. NH3
  2. 2. Distance from peak to peak, represented by lambda
  3. 4. Bond between a metal & nonmetal, for example
  4. 5. Same number of protons, different number of neutrons
  5. 7. thousand, prefix
  6. 9. Neutral atom with the configuration [Ne]3s2,3p4
  7. 10. The central atom in a BrNO molecule?
  8. 12. Two ions/atoms with the same electron configuration
  9. 15. Electron geometry with 4 bond types and no lone pairs
  10. 16. atom with higher negative charge than neutral
  11. 20. C2H2O2
  12. 23. atom with a varied charge than neutral
  13. 24. number of electrons in a full p orbital
  14. 25. number of electrons in a full d orbital
  15. 28. Negatively charged subatomic particle
  16. 31. Reaction that forms a water and a salt
  17. 34. millionth, prefix
  18. 35. CN-