Technical data for Radon

Overview
NameRadon
SymbolRn
Atomic Number86
Atomic Weight222[note]
Density9.73 g/l[note]
Melting Point-71 °C
Boiling Point-61.7 °C

Thermal properties
PhaseGas
Melting Point-71 °C
Boiling Point-61.7 °C
Absolute Melting Point202 K
Absolute Boiling Point211.3 K
Critical Presure6.28 MPa (61.98 Atm)
Critical Temperature377 K
Heat of Fusion3 kJ/mol
Heat of Vaporization17 kJ/mol
Heat of CombustionN/A
Specific Heat93.65 J/(kg K)[note]
Adiabatic Index5/3
Thermal Conductivity0.00361 W/(m K)
Thermal ExpansionN/A

Bulk physical properties
Density9.73 g/l[note]
Density (Liquid)N/A
Molar Volume0.02282
Thermal Conductivity0.00361 W/(m K)
Thermal ExpansionN/A

Reactivity
Valence6
ElectronegativityN/A
ElectronAffinity0 kJ/mol
Ionization Energies
1037 kJ/mol

Health and Safety
Autoignition PointN/A
FlashpointN/A

Classifications
Alternate NamesNone
Nams of AllotropesNone
Blockp
Group18
Period6
Electron Configuration[Xe]4f145d106s26p6
ColorColorless
Discovery
1900 in Germany
Gas phaseMonoatomic
CAS NumberCAS10043-92-2

Electrical properties
Electrical TypeN/A
Electrical ConductivityN/A
ResistivityN/A
Superconducting PointN/A

Magnetic properties
Magnetic TypeN/A
Curie PointN/A
Mass Magnetic SusceptibilityN/A
Molar Magnetic SusceptibilityN/A
Volume Magnetic SusceptibilityN/A

Abundances
% in UniverseN/A
% in SunN/A
% in MeteoritesN/A
% in Earth's CrustN/A
% in Oceans6×10-20%
% in HumansN/A

Atomic dimensions and structure
Atomic Radius120 pm
Covalent Radius145 pm
Van der Waals RadiusN/A
Crystal StructureN/A
Lattice AnglesN/A
Lattice ConstantsN/A
Space Group NameN/A
Space Group NumberN/A

Nuclear Properties
Half-Life3.823495 d
Lifetime5.516088 d

Notes on the properties of Radon:
Atomic Weight: Atomic mass number given for longest lived isotope.
Density: Density at 0° Celsius.
Specific Heat: Value given for gas phase.