Rutherfordium

Metal

synthetic

Symbol: Rf
Atomic number: 104
Atomic mass: (261.1089)
Group: Transition Metal
CAS-number: 53850-36-5

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Electronic 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: --

Thermal data

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

Steric data

Atomic radius: -- Å
Ionic radius: -- Å
Covalent radius: -- Å
Atomic volume: -- cm³/mol
Density (293 K): -- g/cm³
Crystal structure: --

Nuclide	Mass	Halflife	Decay mode	Decay tree
²⁵⁷Rf	257.103	4.7s	α, EC, SF	View
²⁵⁸Rf	258.103	12ms	SF	View
²⁵⁹Rf	259.106	3.4s	α, SF	View
²⁶¹Rf	261.109	1.1m	α	View

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.

Rutherfordium

Physical data

Electronic data

Thermal data

Steric data

Isotopes

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