Atomic And Nuclear Physics Hardest Quiz!

10 Questions | Total Attempts: 852

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Atomic And Nuclear Physics Hardest Quiz!

What we have here is considered atomic and nuclear physics hardest quiz! A lot of people are confused about what makes atomic and nuclear physics is centered on. While one focuses on the atom the other focuses n protons and neutrons in the nucleus. Do you know the different types of energy and how they are obtained? The quiz below will be a perfect refresher for you. Do give it a try and see how well you do!


Questions and Answers
  • 1. 
    In the Geiger-Marsden experiment, α particles are scattered by gold nuclei. The experimental results indicate that most α particles are
    • A. 

      Scattered only at small angles

    • B. 

      Scattered only at large angles

    • C. 

      Absorbed in the target

    • D. 

      Scattered back along the original direction.

  • 2. 
    A sample of radioactive carbon-14 decays into a stable isotope of nitrogen. As the carbon-14 decays, the rate at which the amount of nitrogen is produced.
    • A. 

      Decreases linearly with time

    • B. 

      Increases linearly with time

    • C. 

      Decreases exponentially with time

    • D. 

      Increases exponentially with time

  • 3. 
    Which one of the following provides direct evidence for the existence of discrete energy levels in an atom?
    • A. 

      The continuous spectrum of the light emitted by a white-hot metal

    • B. 

      The line emission spectrum of a gas at low pressure

    • C. 

      The emission of gamma radiation from radioactive atoms

    • D. 

      The ionization of gas atoms when bombarded by alpha particles

  • 4. 
    A sample of material initially contains atoms of only one radioactive isotope. Which one of the following quantities are reduced to one half of its initial value during a time equal to the half-life of the radioactive isotope?
    • A. 

      Total mass of the sample

    • B. 

      Total number of atoms in the sample

    • C. 

      Total number of nuclei in the sample

    • D. 

      Activity of the radioactive isotope in the sample

  • 5. 
    In a fission chain reaction
    • A. 

      Energy from one fission reaction causes further fission reactions

    • B. 

      Nuclei produced in one fission reaction cause further fission reactions

    • C. 

      Neutrons from one fission reaction cause further fission reactions

    • D. 

      Gamma radiation produced in one fission reaction causes further fission reactions

  • 6. 
    Which one of the following correctly identifies the atomic (proton) number and mass (nucleon) number of a nucleus that has neutrons n and protons p?   Atomic number Mass number A. p n B. p n + p C. n p D. n + p p
    • A. 

      A

    • B. 

      B

    • C. 

      C

    • D. 

      D

  • 7. 
    Isotopes provide evidence for the existence of
    • A. 

      Protons

    • B. 

      Electrons

    • C. 

      Nuclei

    • D. 

      Neutrons

  • 8. 
    An isotope of radium has a half-life of 4 days. A freshly prepared sample of this isotope contains N atoms. The time taken for 7N/8 of the atoms of this isotope to decay is
    • A. 

      32 days

    • B. 

      16 days

    • C. 

      12 days

    • D. 

      8 days

  • 9. 
    The presence of neutrons inside the nucleus is supported by the existence of
    • A. 

      Isotopes

    • B. 

      Orbiting electrons

    • C. 

      Gamma radiation

    • D. 

      Neutral atoms

  • 10. 
    The source of the Sun’s energy is
    • A. 

      Fission

    • B. 

      Radioactivity

    • C. 

      Fusion

    • D. 

      Ionization

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