SCH3U1 Chem Test 1

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Oddishii
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261745
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SCH3U1 Chem Test 1
Updated:
2014-02-12 23:37:45
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  1. Democritis
    all matter is made up of small individual particles called atoms
  2. All matter is made up of small individual particles called atoms
    Democritis
  3. Dalton
    • Matter has atoms
    • Each element is made of diff. types of atom
    • different atoms have different properties
    • 2 or more atoms can be binded to make substances
    • atoms cannot be created, destroyed, or subdivided
  4. Each element is made of diff. types of atomdifferent atoms have different properties
    Dalton
  5. 2 or more atoms can be binded to make substances
    Dalton
  6. atoms cannot be created, destroyed, or subdivided
    Dalton
  7. Faraday
    • electric current causes chemical changes in compounds
    • matter contains positive and negative charges
  8. Who discovered the electron and how
    J.J. Thomson shot an anode (negative particles) to a cathode (positive) with two positive and negative plates. The Particles repelled from negative to positive. 

    Shows that atom is a positively charged sphere with negatively charged particles
  9. Who discovered protons and how
    Ernest Rutherford did the gold foil experiment, where alpha (+) particles shot through gold foil. Some went straight through but others diverged because deflected positive particles in gold
  10. JJ Thomson
    Shows that atom is a positively charged sphere with negatively charged particles through his anode and cathode experiment
  11. Rutherford
    Gold foil experiment, found the proton (atom contains positively charged nucleus surrounded by mostly empty space)
  12. Chadwick
    uncharged neutrons in nucleus
  13. Who found the neutron?
    Chadwick
  14. What statements in Dalton's theory weren't correct?
    • Subdivision
    • Same atom of element can have different properties
  15. Who found the nucleus?
    Rutherford

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