Vocab.

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Across
  1. 3. Absorbs energy in the form of heat
  2. 4. Using symbols to represent chemical compounds
  3. 6. A subatomic particle that has a negative charge
  4. 7. A change that does not effect the identity of the substances
  5. 8. Atoms or ions are bound together
  6. 10. 1 compound forms 2 or more elements
  7. 12. Characteristic or description of an object
  8. 13. A subatomic particle that has a positive charge
  9. 14. A substance that cannot be broken down any more than it is.
  10. 17. A particle that is smaller than an atom
  11. 20. Can be observed without changing the substance
  12. 22. Parts of mixture look the same
  13. 23. location of protons and neutrons
  14. 24. A variable that can be on its own
  15. 25. A subatomic particle that has a neutral charge
  16. 29. elements share electrons, between 2 non-metals
  17. 30. The patterns of an electrons in an atom
  18. 31. The number in front of the variable
  19. 33. A change that creates a new substance
  20. 34. 1 element and 1 compound form a new element and a new compound
  21. 38. Ion with more than 1 atom has a charge, acts like a single unit
  22. 39. Releases energy in the form of heat
  23. 40. All atoms want 8 valance electrons like the noble gases
  24. 42. Parts of mixture look different
  25. 43. Hydrogencarbon and oxygen form water and carbon dioxide
  26. 45. negative ion, gained electrons, usually non-metals
  27. 46. Makes a reaction go faster but id not used up
  28. 48. A variable that needs something else with it
  29. 52. A scientific test or piece that actually measures what it sets out to do
  30. 54. An element, feature, or factor that can change
  31. 56. An educated guess based on earlier observations
  32. 57. Atom has gained/lost e ,not neutral
  33. 58. Right side of the P.T.
  34. 59. A variable that stays the same the entire time
  35. 60. 2 or more atoms chemically combined
Down
  1. 1. A chemical change that produces a new substance
  2. 2. 2 compounds form 2 new compounds
  3. 5. How compact an object is
  4. 9. allow them to be placed in groups and periods
  5. 11. Describes how a substance changes into a new substance
  6. 13. The substance after the change has occurred, written on right side of arrow
  7. 15. Whole number on the P.T.
  8. 16. Rounded atomic mass
  9. 18. Elements with the same number of electrons are put in the same row
  10. 19. 2 elements form a compound
  11. 21. Same ratio of atoms no matter the size of substance
  12. 26. The substance before the change, written on left side of thee arrow
  13. 27. Has an equal number of atoms on both sides of the arrow
  14. 28. Something that is unchanged through out an experiment
  15. 32. The energy stored in the bonds of a compound
  16. 35. 2 or more atoms/compounds physically combined
  17. 36. Decimal number on P.T.
  18. 37. two or more atoms of the same element, they have the same #of protons but different umber of neutrons
  19. 41. on the left side of the P.T.
  20. 44. Elements transfer electrons, between a metal and a non-metal, or cation and anion
  21. 47. the elements have a repeating pattern
  22. 49. Simplest form of that species, smallest form of an element that consists of a nucleus, protons, neutrons, electrons, orbitals
  23. 50. Elements with similar properties are arranged in the same column
  24. 51. Positive ion, lost electrons, usually metals
  25. 53. An effect or attempt
  26. 55. On the stair-step