Lesson 3 - The Arrangement Of Electrons In Atoms

10 Questions | Total Attempts: 459

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Lesson Quizzes & Trivia

Questions and Answers
  • 1. 
    It is important to learn about quantum mechanics because
    • A. 

      This information allows us to understand why some chemicals are colorful and others are dull and muted.

    • B. 

      This information tells us why certain elements may be very reactive while others may be relatively non-reactive.

    • C. 

      This information tells us why certain elements are found as gases at room temperature.

    • D. 

      This information tells us how atoms grow to become larger molecules.

  • 2. 
    The first quantum number is known as the _________quantum number and says that ________________________.
    • A. 

      Orbital quantum number; electrons are found in layers around the nucleus of the atom.

    • B. 

      Principle quantum number; electrons are found in four different shapes.

    • C. 

      Principle quantum number; electrons are found in layers around the nucleus of the atom.

    • D. 

      Spin quantum number; electrons spin in two directions while in travel.

  • 3. 
    How many layers of electrons might one encounter in an atom according to the theory of quantum mechanincs?
    • A. 

      3

    • B. 

      8

    • C. 

      7

    • D. 

      12

  • 4. 
    The orbital quantum number says that
    • A. 

      Electrons are found in layers around the nucleus of the atom.

    • B. 

      Electrons are found in 5 different shaped pathways.

    • C. 

      Electrons spin as they move along their pathways.

    • D. 

      Electrons travel in pathways having four different shapes.

  • 5. 
    When thinking about the different shaped paths on which electrons travel, which shape below is not one of the shapes we discussed?
    • A. 

      Rectilinear

    • B. 

      Spherical

    • C. 

      Pear-shaped

    • D. 

      Dumb-bell shaped

  • 6. 
    The magnetic quantum number says
    • A. 

      That the s-shaped orbits can be found in three different orientations in space.

    • B. 

      That the p-shaped electrons move in three different shaped pathways.

    • C. 

      That the p-shaped orbits are found in three different orientations in space (a, b, c)

    • D. 

      That the p-shaped orbits are found in three different orientations in space (x, y, z)

  • 7. 
    The Spin quantum number says
    • A. 

      That the electrons travel in pairs with one electron spinning clockwise and the second spinning counterclockwise.

    • B. 

      That the electrons travel in pairs with one electron spinning clockwise and the second electron sitting in a stationery position.

    • C. 

      That the electrons are arranged in p-shaped orbits aligned along three axis in space.

    • D. 

      That the nucleus of the atom rotates along the x-axis while the electrons, traveling in pairs, each spins accordingly.

  • 8. 
    Choose the element symbol pair which is correctly matched.
    • A. 

      Carbon Ca

    • B. 

      Calcium C

    • C. 

      Chlorine Ch

    • D. 

      Cobalt Co

  • 9. 
    The atomic number of an element tells the 
    • A. 

      Address of the element

    • B. 

      Number of protons, neutrons and croutons found in an atom of that element.

    • C. 

      Number of protons, neutrons, and electrons found in an atom of that element.

    • D. 

      The number of electrons found spinning clockwise around one atom of that element.

  • 10. 
    Of the three subatomic particles, electrons have the greatest mass.
    • A. 

      True

    • B. 

      False

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