Quiz  /  Radioactivity MCQ

  • 1. 
    The neutral atoms of all isotopes of the same element contain the same number of __________.

  • neutrons only.
  • Electrons
  • Mass numbers
  • Masses

  • 2. 
    The atomic number is not changed by which type of radioactive decay?

  • Beta
  • Gamma
  • Alpha
  • The atomic number is affected by all forms of radioactive decay

  • 3. 
    Isotopes of an element have a different number of

  • Proton
  • Neutron
  • Electron
  • atom

  • 4. 
    Three types of radioactive elements are emitted when unstable nuclei undergo radioactive decay. Which of the following is not one of them

  • Beta
  • Gamma
  • Alpha
  • delta

  • 5. 
    A nuclear fission reaction becoming self-sustaining depends on

  • electrons
  • Neutrons
  • Energy
  • Protons

  • 6. 
    Helium nuclei particles are called

  • Gamma particles
  • Beta particles
  • Alpha particles
  •  No particles that are helium nuclei

  • 7. 
    When two atomic nuclei combine it is called as

  • Chain reaction
  • Nuclear fusion
  • Nuclear decay
  • Nuclear fission

  • 8. 
    The number of protons or atomic number is reduced to 2 by which form of radioactive decay?

  • Beta-decay
  • Gamma decay
  • Alpha decay
  • None of the above

  • 9. 
    Which statement is true for all three types of radioactive emission?

  • They are deflected by electric fields
  • They ionise gases
  • They are completely absorbed by a thin aluminium sheet
  • They emit light
Report Question
warning
access_time
  Time