| Radon is a radioactive gas that comes from the radioactive decay of radium, which is a natural decay product of uranium. As a noble gas, radon is colorless, odorless, and chemically inert and cannot be detected by human sense. |
| Radon is a radioactive gas that comes from the radioactive decay of radium, which is a natural decay product of uranium. As a noble gas, radon is colorless, odorless, and chemically inert and cannot be detected by human sense. |