Radon has an atomic number of 86, meaning each atom contains 86 protons in its nucleus.
The standard atomic weight of radon is [222] u (unified atomic mass units).
Radon is classified as a noble gas.
Radon is a gas at 20 Β°C (68 Β°F).
The melting point of radon is -71.15 Β°C / 202 K.
The boiling point of radon is -62.15 Β°C / 211 K.
The density of radon is 9.73e-3 g/cmΒ³ (20Β°C).
Radon has a Pauling electronegativity of 2.2.
The electron configuration of radon is [Xe] 4f14 5d10 6s2 6p6.
Radon commonly exhibits the following oxidation states: 0, +2.
Radon was discovered in 1900 by Friedrich Ernst Dorn.
Radon is a naturally occurring radioactive element; all of its isotopes are radioactive.
No biological role.
Radon is used for: Radiotherapy research; Geological tracing.