Basic Information About Radon
| Name = Radon | Melting Point = 202 Kelvins [or -71 °C (-96 °F)] | Group Name = noble gas |
| Symbol = Rn | Boiling Point = 211.3 Kelvins [or -61.7 °C (-79.1 °F)] | Color = colorless |
| Atomic Mass = 222 amu | Density in Natural State = Density at 293 K is 9.73 g/cm3(the heaviest known mononuclear gas) | Block of Period Table = p-block |
| Atomic Number = 86 | Natural Abundance = annual average air concentrations range in the US from 0.016 pCi/L (0.6 Bq/m3) to 0.75 pCi/L (28 Bq/m3) | Natural State = gas |
Radon's Half Life - Radon has one of the shortest half-lives for any radioactive element/compound. On average Radon 222 has a half-life of 3.82 days when some others like Uranium 238 have a half-life of 4.47 x 109 years, while others still are immeasurable because they are so long.
How is Radon Obtained? - Radon is obtained for use in hospitals and such from radium, because in essence radon is just a decaying form of radium. So a small portion of radium is obtained and from that radon it produced.
Where is Radon Found? - Radon is found in many rock beds spread throughout the world. Specific rock beds contain radium which in turn produces radon that can leak through the earth's crust.
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Radon's Structure Explained - Number of Energy
Levels = 6
First Energy Level: 2 electrons Radon's crystal structure is characterized as cubic. |
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List of Isotopes and their Half-Lives'
| Isotope | Half Life |
| Radon 211 | 14.6 hours |
| Radon 212 | 24.0 minutes |
| Radon 217 | .6 milliseconds |
| Radon 218 | 35.0 milliseconds |
| Radon 219 | 3.96 seconds |
| Radon 220 | 55.61 seconds |
| Radon 222 | 3.82 days |