Understanding Radiation

What is the primary difference between non-ionizing and ionizing radiation?

• Non-ionizing radiation is harmful, while ionizing radiation is not.

• Non-ionizing radiation has lower energy levels compared to ionizing radiation.

• Non-ionizing radiation is visible, while ionizing radiation is not.

• Non-ionizing radiation involves particles, while ionizing radiation involves waves.

What keeps an atom together?

• The attraction between protons and neutrons.

• The repulsion between neutrons and the nucleus.

• The repulsion between electrons and protons.

• The attraction between electrons and the nucleus.

What is a radioisotope?

• An atom that is stable and non-radioactive.

• An atom with a balanced number of protons and neutrons.

• An atom that emits only alpha particles.

• An atom with an imbalance in the number of neutrons, making it unstable.

How does Technetium-99m help in medical diagnostics?

• It stabilizes radioactive atoms in the body.

• It emits gamma radiation that allows imaging of internal organs.

• It emits alpha particles that can be detected by a camera.

• It has a long half-life, making it ideal for prolonged tests.

What is the role of the Canadian Nuclear Safety Commission?

• To increase the half-life of radioactive materials.

• To promote the use of nuclear weapons.

• To regulate the use of nuclear substances and ensure safety.

• To develop new nuclear power plants.