Chemistry Finals 2

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Anonymous
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5287
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Chemistry Finals 2
Updated:
2010-01-26 20:51:36
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  1. what is an isotope?
    an atom that has the same # of protons and a different # of neutrons.
  2. what was Rutherford famous for?
    He discovered the nucleus and made the Alpha Perticle Scatter Model. He discovered that the nucleus is dense.
  3. what is JJ Thomson famous for?
    He discovered the electron. and made the Cathode Ray Tube Model
  4. what are some examples of Physical Properties?
    odor, color, volume, state.
  5. What are some examples of Chemical Properties?
    rust, digestion, burning wood.
  6. what is a compound?
    A substance that has the same composition that can be broken down into elements by chemical means (H2O)
  7. what is an element?
    Cant be broken down into substances by chemical means.
  8. what is a mixture?
    something that has a variable compositons (coffee can be bitter and sweet, and trees can be many colors)
  9. what is a bohr model?
    a model of the hydrogen atom
  10. who is Dalton?
    he created the atom theory(the law of constant sompisition)
  11. who is Schrodenger?
    he made the wave mechanical model of the atom.
  12. the names: periodical table: group 1, Group 2, Group 3-12, Group 17, Group 18:
    • 1-akali metals
    • 2-akaline earth metals
    • 3-12- transition metals
    • 17-halogens
    • 18-noble gas
  13. know the electron configuration:
    1s 2s 3s 3p 4s 3d 4p 5s 4d 5p 6s 5d 6p

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