Chemistry 121 Chapter 2 Part 1

15 Questions | Total Attempts: 109

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Questions and Answers
  • 1. 
    _____________ gave the first serious thought to the thought "what is matter made of ?"
    • A. 

      The Greeks

    • B. 

      J.J. Thompson

    • C. 

      John Dalton

  • 2. 
    Believed that elements were made of identical particles called atoms
    • A. 

      J.J. Thompson

    • B. 

      The Greeks

    • C. 

      John Dalton

  • 3. 
    Believed that atoms of a given element are different from those of any other element
    • A. 

      J.J. Thompson

    • B. 

      John Dalton

    • C. 

      The Greeks

  • 4. 
    Believed that atoms of one element can combine with atoms of other elements to form compounds. A given compound always has the same relative numbers of types of atoms.
    • A. 

      John Dalton

    • B. 

      J.J. Thompson

    • C. 

      The Greeks

  • 5. 
    Believed that atoms cannot be created, divided into smaller particles, nor destroyed in any chemical process.
    • A. 

      The Greeks

    • B. 

      John Dalton

    • C. 

      J.J. Thompson

  • 6. 
    During this time scientist strived to find out what atoms really looked like.
    • A. 

      17th Century

    • B. 

      19th Century

    • C. 

      18th Century

  • 7. 
    The basic unit of any element that can enter into interaction with other elements in a chemical reaction
    • A. 

      Atom

    • B. 

      Proton

    • C. 

      Electron

  • 8. 
    The basic unit of any element that can enter into interaction with other elements in a chemical reaction is called an atom.  Another name for this is _______________
    • A. 

      Dalton's Law

    • B. 

      Thompson's Theory

    • C. 

      Atomic Theory

  • 9. 
    J.J. Thompson discovered the _______________
    • A. 

      Atom

    • B. 

      Atomic Theory

    • C. 

      Electron

  • 10. 
    J.J. Thompson discovered the electron in _________
    • A. 

      1906

    • B. 

      1891

    • C. 

      1902

  • 11. 
    Thompson found that the cathode rays _______ under the influence of an electric field.
    • A. 

      Did bend

    • B. 

      Did not bend

  • 12. 
    Thompson concluded the cathode rays were indeed made of particles which he called ___________
    • A. 

      Sub-elements

    • B. 

      Positive charges

    • C. 

      Corpuscles

  • 13. 
    Corpuscles came from within the atoms of the electrodes themselves, meaning they were called __________________
    • A. 

      Protons

    • B. 

      Sub-atomic particles

    • C. 

      Neutrons

  • 14. 
    Another name for sub-atomic particles is _____________________
    • A. 

      Electrons

    • B. 

      Neutrons

    • C. 

      Protons

  • 15. 
    __________ orbit around the nucleus of an atom
    • A. 

      Protons

    • B. 

      Neutrons

    • C. 

      Electrons

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