Chemistry Review

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Across
  1. 3. gives off energy
  2. 5. property reactivity or chemical composition
  3. 7. change element charge doesn't change mass
  4. 10. between metals
  5. 12. spectrum range of wavelengths radiate
  6. 16. NO3 -
  7. 18. radius size of atom bottom left
  8. 19. fission large nuclei split to form small, stable nuclei
  9. 22. an educated guess
  10. 24. negatively charged ion
  11. 25. same element with different masses
  12. 26. charged particles
  13. 28. breaks down
  14. 32. decay radioactive isotopes emit a
  15. 34. same number of energy levels
  16. 37. how badly an atom want boning e-
  17. 38. NH4
  18. 40. SO4-2
  19. 41. two or more substances physically combined
  20. 42. fusion small nuclei to form one large nuclei
Down
  1. 1. property is something that is measurable or observed
  2. 2. decay does NOT involve particles emission
  3. 4. if it can dissolve in water
  4. 6. electron jumps up a level
  5. 8. location of an electron
  6. 9. jumps down a level
  7. 11. nonmetal and nonmetal
  8. 13. energy it takes to remove an electron
  9. 14. metal and nonmetal
  10. 15. evenly mixed
  11. 17. an idea that has evidence to support it
  12. 20. sheet with hazards and properties of a chemical
  13. 21. unevenly mixed
  14. 23. property physical property that depends on the amount (size, mass, and volume)
  15. 27. the same number of valence electrons
  16. 29. unstable isotope
  17. 30. property physical property that does NOT depend on the amount
  18. 31. color of light
  19. 33. more than 2 elements
  20. 35. structures show valence electron bonds
  21. 36. positively charged ion
  22. 39. substance substance that can not be physically separated