This week's element is radon, which has the chemical symbol Rn and the atomic number 86. Radon is the largest and heaviest of the noble gases that are known to exist, and thus, it's the last one we ...

Even in trace quantities, the radioactive gas radon is very dangerous; it is second only to cigarette smoking as a cause of lung cancer deaths in the United States. The expense and precautions ...

We are continuously exposed to radioactivity in everyday life. Some of the most familiar sources of radiation include microwave ovens in our kitchens and the radios we listen to in our cars. Most of ...

If you would like to learn more about the IAEA’s work, sign up for our weekly updates containing our most important news, multimedia and more. Until relatively recently, the dangers posed by radon and ...

Parts of Cambridgeshire are among areas in the UK with exposure to the radioactive element radon. Radon is a colourless and odourless radioactive gas that comes from the decay of other elements in ...

Every building contains elements of a colourless and odourless radioactive gas called radon. The substance comes from the decay of uranium in rocks and soil and can cause cancer. Exposure to this type ...