Radon Gas Quiz – Formation, Risks & Safety

1. Radon is best described as:

a) A reactive halogen gas
b) A radioactive noble gas
c) A stable isotope of uranium
d) A compound of radium and oxygen

2. Radon gas is formed by the radioactive decay of which element found in many rocks?

a) Silver
b) Carbon
c) Uranium
d) Lead

3. The most stable isotope of radon is:

a) Radon-220
b) Radon-222
c) Radon-226
d) Radon-230

4. The half-life of radon-222 is approximately days.

5. The main type of radiation emitted by radon-222 is radiation.

6. Why is inhaling radon gas dangerous?

a) It reacts with oxygen in the lungs
b) It emits alpha particles that damage lung tissue
c) It releases toxic carbon monoxide
d) It replaces oxygen in the bloodstream

7. Radon gas typically enters homes through:

a) Open windows
b) Cracks and gaps in floors and foundations
c) Air conditioning systems
d) Water taps and pipes only

8. Which UK regions are known to have higher radon levels?

a) Cornwall, Devon, and Derbyshire
b) London and East Anglia
c) Kent and Essex
d) Yorkshire and Lincolnshire

9. To reduce indoor radon levels, homeowners can improve ventilation or install a radon with a fan.

10. Radon exposure is the leading cause of lung cancer in:

a) Smokers
b) Miners only
c) Non-smokers
d) Children