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Roentgenium

Metal radioactivesynthetic
Symbol: Rg
Atomic number: 111
Atomic mass: (272)
Group: Transition Metal
CAS-number: 54386-24-2

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Physical data

Electronic dataThermal dataSteric data
Shells: 2, 8, 18, 32, 32, 17, 2
Orbitals: [Rn] 5f14 6d10 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: --

Isotopes

No data

Other info

Name origin:Named after German physicist Wilhelm Conrad Röntgen, the discoverer of X-rays. Original temporary IUPAC name: Un (one) nun (one) unium (one).
Description:Synthetic radioactive metal.
Discovered by:Heavy Ion Research Laboratory (HIRL)
Year:1994
Place:Germany
Sources:Made by bombarding bismuth-209 with nickel-60.
Use(s):It has no significant commercial applications.