Roentgenium

Metal

synthetic

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

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Electronic 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: --

Thermal data

Melting point: -- °C
Boiling point: -- °C
Specific heat: -- J/gK
Heat of fusion: -- kJ/mol
Heat of vaporization: -- kJ/mol
Thermal conductivity: -- W/cmK

Steric data

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

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.

Roentgenium

Physical data

Electronic data

Thermal data

Steric data

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