Radon
| Use attributes for filter ! | |
| Symbol | Rn |
|---|---|
| Atomic number | 86 |
| Discovered | 1900 |
| Electron configuration | [Xe] 4f145d106s26p6 |
| Atomic mass | 222 u |
| Discoverer | Friedrich Ernst Dorn |
| Melting point | -71.15 °C |
| Date of Reg. | |
| Date of Upd. | |
| ID | 4341467 |
About Radon
Radon is a chemical element; it has symbol Rn and atomic number 86. It is a radioactive noble gas and is colorless and odorless. Radon isotopes are the immediate decay products of radium isotopes. Radon's most stable isotope, radon-222, has a half-life of only 3.8 days, making radon one of the rarest elements.