Electronic data		Thermal data		Steric data
Shells: 2,8,18,32,18,8 Orbitals: [Xe] 4f14 5d10 6s2 6p6 Electronegativity: 2.06, -- 1. Ionization potential: 10.7485 eV 2. Ionization potential: -- eV 3. Ionization potential: -- eV Oxidation states: 2 Electrical conductivity: --		Melting point: -71 °C Boiling point: -61.8 °C Specific heat: 0.09 J/gK Heat of fusion: 2.890 kJ/mol Heat of vaporization: 16.40 kJ/mol Thermal conductivity: 0.0000364 W/cmK		Atomic radius: 1.34 Å Ionic radius: -- Å () Covalent radius: -- Å Atomic volume: 50.5 cm³/mol Density (293 K): 0.00973 g/cm³ Crystal structure: Cubic: Face centered

Legend     Pocket calculator

Nuclide	Abundance [%]	Mass	Spin	Halflife	Decay mode	Decay tree
211Rn	0	210.991	1/2	14.6h	EC,+,	View
212Rn	0	211.991	0	24m		View
217Rn	0	217.004	9/2	0.6ms		View
218Rn	0	218.006	0	35ms		View
219Rn	0	219.01	5/2	3.96s		View
220Rn	0	220.011	0	55.61s		View
222Rn	0	222.018	0	3.824d		View

Legend

Name origin:	Variation of the name of another element, radium.
Description:	Colorless, odorless, tasteless, radioactive, heavy, noble gas.
Discovered by:	Fredrich Ernst Dorn
Year:	1898
Place:	Germany
Sources:	Formed from the decay of radium in the earths crust.
Use(s):	Used to treat some forms of cancer.