Atomic Structure And Periodicity

18 Questions | Total Attempts: 771

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Atomic Structure Quizzes & Trivia

Questions and Answers
  • 1. 
    Small packets of energy that are given off are called _________.
    • A. 

      Photons

    • B. 

      Quanta

    • C. 

      Waves

  • 2. 
    What refers to the phenomenon in which electrons are emitted from the surface of a metal when light strikes it?
    • A. 

      Planck's constant

    • B. 

      Dual nature of light

    • C. 

      Photoelectric effect

  • 3. 
    What results when light is scattered from a regular array of points or lines?
    • A. 

      Diffraction

    • B. 

      Spectrum

    • C. 

      Photons

  • 4. 
    Does a photon really have mass?
    • A. 

      Yes

    • B. 

      No

    • C. 

      I have no clue

  • 5. 
    Who devised the equation that allows us to calculate the wavelength for a particle?
    • A. 

      Arthur Compton

    • B. 

      Louis de Broglie

    • C. 

      Max Planck

  • 6. 
    Who proposed that "the electron in a hydrogen atom moves around the nucleus only in certain allowed circular orbits"?
    • A. 

      Niels Bohr

    • B. 

      Ernst Rutherford

    • C. 

      Max Planck

  • 7. 
    The lowest possible energy state of an electron is called what?
    • A. 

      Excited state

    • B. 

      Ground state

    • C. 

      Quantum model

  • 8. 
    Where were fireworks first created and used?
    • A. 

      Denmark

    • B. 

      France

    • C. 

      China

  • 9. 
    According to the Heisenberg uncertainty principle, we cannot simultaneously know a particle's position and _________.
    • A. 

      Mass

    • B. 

      Speed

    • C. 

      Momentum

  • 10. 
    Which quantum number is related to the shape of an atomic orbital?
    • A. 

      Principal

    • B. 

      Angular momentum

    • C. 

      Magnetic

  • 11. 
    The electron spin quantum number states that electrons can spin in __________ directions.
    • A. 

      Opposite

    • B. 

      Identical

    • C. 

      Any

  • 12. 
    What important concept states that "an orbital can hold only two electrons, and they must have opposite spins"?
    • A. 

      Hund's rule

    • B. 

      Aufbau principle

    • C. 

      Pauli exclusion principle

  • 13. 
    What important concept states that "as protons are added one by one to the nucleus to build up the elements, electrons are similarly added to these hydrogenlike orbitals"?
    • A. 

      Aufbau principle

    • B. 

      Pauli exclusion principle

    • C. 

      Hund's rule

  • 14. 
    What important concept states "the lowest energy configuration for an atom is the one having the maximum number of unpaired electrons allowed by the Pauli principle in a particular set of degenerate orbitals"?
    • A. 

      Aufbau principle

    • B. 

      Quantum mechanical model

    • C. 

      Hund's rule

  • 15. 
    What are the electrons in the outermost principal quantum level of an atom called?
    • A. 

      Core

    • B. 

      Valence

    • C. 

      Unpaired

  • 16. 
    What is the energy required to remove an electron called?
    • A. 

      Electron affinity

    • B. 

      Ionization energy

    • C. 

      Electronegativity

  • 17. 
    What is the energy change associated with the addition of an electron to an atom?
    • A. 

      Electron affinity

    • B. 

      Ionization energy

    • C. 

      Electronegativity

  • 18. 
    The quantum mechanical model of the atom has allowed us to understand the basis for the similarity of properties in a group -- that each group member has the same __________.
    • A. 

      Second ionization energy

    • B. 

      Atomic radius

    • C. 

      Valence electron configuration