Electronic data		Thermal data		Steric data
Shells: 2,8,18,32,32,10,2 Orbitals: [Rn] 5f14 6d2 7s2 Electronegativity: --, -- 1. Ionization potential: -- eV 2. Ionization potential: -- eV 3. Ionization potential: -- eV Oxidation states: 4 Electrical conductivity: --		Melting point: -- °C Boiling point: -- °C Specific heat: -- J/gK Heat of fusion: -- kJ/mol Heat of vaporization: -- kJ/mol Thermal conductivity: 0.23 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
257Rf	0	257.103	0	4.7s	,EC,SF	View
258Rf	0	258.103	0	12ms	SF	View
259Rf	0	259.106	0	3.4s	,SF	View
261Rf	0	261.109	0	1.1m		View

Legend

Name origin:	Named in honor of Ernest Rutherford.
Description:	Synthetic radioactive metal.
Discovered by:	A. Ghiorso, et al
Year:	1969
Place:	United States
Sources:	Made by bombarding californium-249 with beams of carbon-12 and 13, which produced an isotope with half lives of 4+ and 3 sec.
Use(s):	It has no significant commercial applications.