Quantum Mechanics Practice Test

48 Questions | Total Attempts: 1178

SettingsSettingsSettings
Please wait...
Quantum Mechanics Practice Test

This is a test designed to help grade 12 University Chemistry students practice quantum mechanics before a big unit test. (Such as myself)


Questions and Answers
  • 1. 
    When n = 5, the possible values of l are:
    • A. 

      0,1,2

    • B. 

      0

    • C. 

      0,1,2,3,4,5

    • D. 

      0,1,2,3,4

  • 2. 
    Which type of orbital is not possible?
    • A. 

      3f

    • B. 

      6s

    • C. 

      2p

    • D. 

      4p

  • 3. 
    What type of orbital has l = 2?
    • A. 

      S-orbital

    • B. 

      P-orbital

    • C. 

      D-orbital

    • D. 

      F-orbital

  • 4. 
    What are the only possible values of the "Spin Quantum Number" in any case?
    • A. 

      +1/2

    • B. 

      +1/2 and -1/2

    • C. 

      0

    • D. 

      -1

  • 5. 
    Matter cut into smaller and smaller pieces would become the atom is a brief summary of which Atomic Theory?
    • A. 

      Present Theory

    • B. 

      Greek Atomic Theory

    • C. 

      Bohr's 1st Postulate

    • D. 

      Dalton's Model of the Atom

  • 6. 
    John Dalton created 3 laws of Atomic Theory, which law did he NOT create?
    • A. 

      Law of Definite Composition

    • B. 

      Law of Multiple Proportions

    • C. 

      Law of Conservation of Mass

    • D. 

      Law of postulates

  • 7. 
    What does the "Law of Definite Proportion" entail?
    • A. 

      Elements combine in a characteristic mass ratio.

    • B. 

      There may be more than one mass ratio.

    • C. 

      Total mass remains, atoms cannot be created or destroyed in a reaction.

    • D. 

      Electrons orbit a positively charged nucleus.

  • 8. 
    The "Raison Bun Theory" was created by JJ Thomson in 1897.
    • A. 

      True

    • B. 

      False

  • 9. 
    Who stated: The smallest particle of an atom was invisible, and an atom of one element is different than that of another?
    • A. 

      Thomson

    • B. 

      Rutherford

    • C. 

      Dalton

    • D. 

      Bohr

  • 10. 
    The __________ experiment proved that:
    • Electrons are orbiting a positive nucleus
    • The positive portion is a proton
    • Change equal to, but opposite of the electron is 1836 times heavier.
  • 11. 
    Who created the "Gold Foil Experiment?"
    • A. 

      Rutherford

    • B. 

      Bohr

    • C. 

      Lewis

    • D. 

      Dalton

  • 12. 
    Who disagreed with Rutherford's theory that the atom was mostly open space and that electrons orbited a positive nucleus?
    • A. 

      Dalton

    • B. 

      Bohr

    • C. 

      Thomson

    • D. 

      Chadwick

  • 13. 
    Bohr's 1st postulate stated that electrons don't radiate energy while orbiting and each orbit has a state of constant energy.
    • A. 

      True

    • B. 

      False

  • 14. 
    In Bohr's 2nd postulate, he stated a transition from higher to lower energy state emits _____ and is called ______.
    • A. 

      Photons, dark line spectra

    • B. 

      Energy, dark line spectra

    • C. 

      Energy, bright line spectra

    • D. 

      Photons, bright line spectra

  • 15. 
    In Bohr's 2nd postulate, he stated a transition from lower to higher energy state absorbs _____ and is called ______.
    • A. 

      Photons, dark line spectra

    • B. 

      Energy, dark line spectra

    • C. 

      Energy, bright line spectra

    • D. 

      Photons, bright line spectra

  • 16. 
    Democritus and Leucipus stated that atoms were "cuttable."
    • A. 

      True

    • B. 

      False

  • 17. 
    Dalton's model of the atom showed that atoms consists of invisible atoms.
    • A. 

      True

    • B. 

      False

  • 18. 
    Which model of the atom is this?
    • A. 

      Plum Pudding Model

    • B. 

      Nuclear Model

    • C. 

      Bohr Model

    • D. 

      Quantum Mechanical Model

  • 19. 
    Which model of the atom is this?
    • A. 

      Plum Pudding Model

    • B. 

      Quantum Model

    • C. 

      Bohr Model

    • D. 

      Nuclear Model

  • 20. 
    Which model of the atom is this?
    • A. 

      Quantum Mechanical Model

    • B. 

      Bohr Model

    • C. 

      Rutherford Model

    • D. 

      Plum Pudding Model

  • 21. 
    Ernest Rutherford discovered Protons and James Chadwick discovered Neutrons.
    • A. 

      True

    • B. 

      False

  • 22. 
    The value of the Magnetic Quantum Number is any number between -l and l.
    • A. 

      True

    • B. 

      False

  • 23. 
    Select all that apply to an orbit as opposed to an orbital.
    • A. 

      3D path

    • B. 

      2D path

    • C. 

      Fixed Distance

    • D. 

      Variable Distance

    • E. 

      2 electrons per shell

    • F. 

      Circular or eliptical

    • G. 

      2n**2 electrons per shell

    • H. 

      No path, varied shape

  • 24. 
    A "node" is the best place to find an electron.
    • A. 

      True

    • B. 

      False

  • 25. 
    What does an Electron Level Diagram represent?
    • A. 

      Relative energy of electrons in various orbitals

    • B. 

      Fixed distance

    • C. 

      The position and momentum of a particle

    • D. 

      Organic Properties

Back to Top Back to top