Electronic data		Thermal data		Steric data
Shells: 2,8,18,32,32,16,2 Orbitals: [Rn] 5f14 6d9 7s1 Electronegativity: --, -- 1. Ionization potential: -- eV 2. Ionization potential: -- eV 3. Ionization potential: -- eV Oxidation states: -- Electrical conductivity: --		Melting point: -- °C Boiling point: -- °C Specific heat: -- J/gK Heat of fusion: -- kJ/mol Heat of vaporization: -- kJ/mol Thermal conductivity: -- W/cmK		Atomic radius: -- Å Ionic radius: -- Å () Covalent radius: -- Å Atomic volume: -- cm³/mol Density (293 K): -- g/cm³ Crystal structure: --

Nuclide	Abundance [%]	Mass	Spin	Halflife	Decay mode	Decay tree
--Uun	--	--	--	--	--	--

Legend

Name origin:	Un (one) nun (one) nilium (zero): IUPAC temporary systematic name
Description:	Synthetic radioactive metal.
Discovered by:	Heavy Ion Research Laboratory (HIRL)
Year:	1994
Place:	Germany
Sources:	Made by bombarding bismuth-209 with cobolt-59.
Use(s):	It has no significant commercial applications.