| Attribute | Value |
|---|---|
| Symbol | Rn |
| Standard state | Gas |
| Atomic mass | 222.01758 u |
| Electron configuration | [Xe]6s²4f¹⁴5d¹⁰6p⁶ |
| Oxidation states |
|
| Atomic radius (van der waals) | 220 pm |
| Ionization energy | 10.745 eV |
| Melting point | 202 K |
| Boiling point | 211.45 K |
| Density | 0.00973 g/cm³ |
| Atomic number | 86 |
| Group name | Noble gas |
| Discovered | 1900 year |
| Electronegativity (pauling scale) | Add |
| Electron affinity | Add |