Atomic Number of Roentgenium

Roentgenium Atomic Number

Atomic Number of Roentgenium is 111.

Chemical symbol for Roentgenium is Rg. Number of protons in Roentgenium is 111. Atomic weight of Roentgenium is 282 u or g/mol. Melting point of Roentgenium is unknown and its the boiling point is unknown.

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About Roentgenium

This is one of the newly discovered elements which was obtained in the mid 1990s in a lab of a German research facility. A group of scientists received it as a result of a nuclear reaction involving bismuth, nickel, and iron. The new element was named roentgenium, after Wilhelm Conrad Röntgen, a German scientists known for creating an X-ray technology. Roentgenium is extremely radioactive and dangerous to the living things on our planet. It does not occur naturally and is used solely in research. So far, only a few atoms of this element have been obtained by the scientists, and the production of this element does not seem to have perspectives.

Properties of Roentgenium Element

Atomic Number (Z)111
Atomic SymbolRg
Atomic Weight282 u
Density28.7 g/cm3
Melting Point (K)unknown
Melting Point (℃)unknown
Boiling Point (K)unknown
Boiling Point (℃)unknown
Heat Capacity
Abundance0 mg/kg
State at STP
Electronegativity (Pauling) χ
Ionization Energy (eV)
Atomic Radius
Covalent Radius
Valence Electrons
Year of Discovery1994
DiscovererSociety for Heavy Ion Research

What is the Boiling Point of Roentgenium?

Roentgenium boiling point is unknown. Boiling point of Roentgenium in Kelvin is unknown.

What is the Melting Point of Roentgenium?

Roentgenium melting point is unknown. Melting point of Roentgenium in Kelvin is unknown.

When was Roentgenium Discovered?

Roentgenium was discovered in 1994.