Electronic data		Thermal data		Steric data
Shells: 2,8,18,32,32,8,2 Orbitals: [Rn] 5f14 7s2 Electronegativity: 1.2, -- 1. Ionization potential: 6.65 eV 2. Ionization potential: -- eV 3. Ionization potential: -- eV Oxidation states: 3,2 Electrical conductivity: --		Melting point: -- °C Boiling point: -- °C Specific heat: -- J/gK Heat of fusion: -- kJ/mol Heat of vaporization: -- kJ/mol Thermal conductivity: 0.1 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
253No	0	253.091	9/2	1.7m	,EC	View
254No	0	254.091	0	55s	,EC,SF	View
255No	0	255.093	1/2	3.1m	,EC	View
257No	0	257.097	7/2	25s		View

Legend

Name origin:	Named in honor of Alfred Nobel, who invented dynamite and founded Nobel prize.
Description:	Synthetic radioactive metal.
Discovered by:	Nobel Institute for Physics
Year:	1957
Place:	Sweden
Sources:	Made by bombarding curium with carbon-13
Use(s):	It has no significant commercial applications.