Nuclear Physics Quiz

What is the charge of a proton?

• +1
• 0
• -1
• 2

Which of the following particles is found in the nucleus of an atom?

• Electron
• Proton
• Alpha particle
• Beta particle

What distinguishes isotopes of the same element?

• Different number of protons
• Different number of electrons
• Different number of neutrons
• Different atomic numbers

What is the mass number of Carbon-14?

• 12
• 14
• 6
• 8

Which type of radiation is the most penetrating?

• Alpha particles
• Beta particles
• Gamma rays
• Neutrons

What is the half-life of a radioactive substance?

• Time taken for all atoms to decay
• Time taken for half the atoms to decay
• Time taken for the atoms to stabilize
• Time taken for the atoms to double

If a radioactive sample has a half-life of 2 hours and starts with 1600 atoms, how many atoms remain after 6 hours?

• 200
• 400
• 800
• 1000

Which of the following is a medical application of nuclear physics?

• Thickness measurements
• Smoke detectors
• Cancer treatment
• Food preservation

What is the primary safety precaution when working with radioactive materials?

• Increase exposure time
• Decrease distance
• Use shielding
• Ignore storage

What is the atomic number of an element?

• Number of neutrons
• Number of protons
• Mass number
• Total number of particles