chemistry

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Across
  1. 3. does NOT depend on amount density (mass divided by volume)
  2. 6. shows valence electrons
  3. 7. example of fission
  4. 10. how badly an atomn wants e- in a bond(highest =F)
  5. 11. positive charged ion
  6. 12. can dissolve(usually in water)-physical property
  7. 18. A negatively charged ion
  8. 19. unstable isotope that will decay
  9. 20. gains energy an jumps top higher e- level
  10. 23. showers, eyewwash fountain, goggles, fire estinguisher, aprons)
  11. 25. negative charge, found found on valence
  12. 26. cant be separated physically - elements and compounds
  13. 27. metals, delocalized
  14. 29. metal and nonmetal,tranfers e-
  15. 31. 2 nonmetals,shared e-
  16. 33. eating away/burning gradually
  17. 35. guess based off of research (educated guess)
  18. 40. states an element is one of a kind (pure)
  19. 42. same element, different mass
  20. 43. shows flammability
  21. 44. physical property that depends on the ammount (size, mass, volume)
Down
  1. 1. sheet for all hazardous products
  2. 2. mass of 1, found in nucleus
  3. 4. electron location
  4. 5. 2 or more substances physically combined
  5. 8. size of atom (largest = bottom left corner)
  6. 9. observed or measured
  7. 13. multiple atoms bonded together w/charge
  8. 14. model of an atom shows a space of positive charge
  9. 15. 2 nonmetals, shared e-
  10. 16. any element in groups 3 to 12 on the periodic table.
  11. 17. metal and nonmetal, transfer e-
  12. 21. reactivity or chemical composition (what its made of)
  13. 22. electron falls back to original level and gives pff energy
  14. 24. change in energy of a neutral atom
  15. 28. emite alpha particle
  16. 30. charged atom (#electrons)
  17. 32. guess based on evidence
  18. 34. positive charge, mass
  19. 36. evenly mixed
  20. 37. Dihydrogen monoxide and hydroxyl acid
  21. 38. large nucleus looses particles
  22. 39. gives off energy
  23. 41. size of wave