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Chadwick discovers neutron
Contributed by: Bannister
  • 1. Who discovered the neutron?
A) Ernest Rutherford
B) Albert Einstein
C) James Chadwick
D) Marie Curie
  • 2. When was the discovery of the neutron made?
A) 1945
B) 1932
C) 1958
D) 1920
  • 3. What is the role of a neutron in an atom?
A) To form chemical bonds
B) To emit radiation
C) To generate electricity
D) To stabilize the nucleus
  • 4. Which element did Chadwick use to discover the neutron?
A) Beryllium
B) Iron
C) Gold
D) Carbon
  • 5. Neutrons are found in the nucleus of atoms alongside which other particle?
A) Photons
B) Protons
C) Quarks
D) Electrons
  • 6. What is the electric charge of a neutron?
A) Neutral
B) Variable
C) Negative
D) Positive
  • 7. What subatomic particle did Chadwick's discovery help explain the presence of?
A) Positron
B) Proton
C) Neutron
D) Electron
  • 8. What is the typical kinetic energy of a neutron in a thermal nuclear reactor?
A) 0.025 eV
B) 1 MeV
C) 100 keV
D) 0.1 eV
  • 9. Why are neutrons important in nuclear reactors?
A) To sustain a nuclear chain reaction
B) To absorb excess protons
C) To generate electricity directly
D) To create anti-particles
  • 10. What type of radiation is emitted by a neutron?
A) Alpha particles
B) Neutrons
C) Beta particles
D) Gamma rays
  • 11. What is the interaction of neutrons with matter in neutron radiography?
A) Ionization and excitation
B) Transmission and emission
C) Absorption and scattering
D) Reflection and refraction
  • 12. What phenomena did Chadwick's discovery of the neutron contribute to in scientific research?
A) Advancement in computer programming
B) Understanding nuclear structure
C) Improvement of rocket propulsion
D) Development of radar technology
  • 13. Which particle shares similar stability roles in an atom as a neutron?
A) Proton
B) Electron
C) Neutrino
D) Boson
  • 14. What is the approximate mass of a neutron?
A) 0 atomic mass units
B) 2 atomic mass units
C) 0.5 atomic mass unit
D) 1 atomic mass unit
  • 15. What type of radiation did Chadwick use in his experiment?
A) Neutrinos
B) Beta particles
C) Alpha particles
D) Gamma rays
  • 16. What is the approximate size of a neutron in meters?
A) 1 x 10-15
B) 1 x 10-9
C) 1 x 10-6
D) 1 x 10-3
  • 17. What was Chadwick awarded for his discovery of the neutron?
A) Emmy Award
B) Oscar Award
C) Grammy Award
D) Nobel Prize in Physics
  • 18. What is the total number of neutrons and protons in an alpha particle?
A) 4
B) 6
C) 2
D) 3
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