Elements
111

Rg

Roentgenium

Roentgenium (Rg) is a radioactive metal that has the atomic number 111 in the periodic table, its appearance is not fully known due to the minuscule amounts produced of it. It is a Transition metal in Group 11. It has the symbol Rg.

Roentgenium is a chemical element created in the laboratory with radioactive properties. Roentgenium has a half life of around 10.7 minutes. It is name after Wilhelm Rontgen, the discoverer of X rays. No chemical experiments have been conducted on the element but it is predicted to have similar properties to gold as it is in the same group. As so little of it has been created the melting and boiling point have not been analysed. It was discovered in Darmstadt, Germany, at the Institute for Heavy Ion Research in 1994.

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FAQ's

What is the Melting Point for Roentgenium?

Roentgenium has a Melting Point of °F, meaning at °F it will turn to a liquid.

What is the Boiling Point for Roentgenium?

Roentgenium has a Boiling Point of °F, meaning at °F it will turn to a Gas.

What is the Electronegativity of Roentgenium?

Roentgenium's Electronegativty is . Electronegativity is a measure of how strongly atoms attract bonding electrons to themselves.

What is the Heat of Vaporization of Roentgenium?

Roentgenium has a Heat of Vaporization of kJ/mol.

Uses

It has no significant commercial applications.

Sources

Made by bombarding bismuth-209 with nickel-60.

111
Protons
111
Electrons
170
Neutrons

Rg

Element Symbol
Rg
Atomic Weight
281
Atomic Number
111
State
Unknown
Melting Point
Unknown
°C
Boiling Point
Unknown
°C
Heat of Vaporization
Unknown
kJ/mol
Crystal Structure
Unknown
Thermoconductivity
Unknown
W/cmK
Shells
2,8,18,32,32,18,1
Group
Unknown
Period
7
Block
D Block
Orbitals
[Rn] 5f14 6d10 7s1
Coefficient of Thermal Expansion
--
Covalent Radius
--
Density at 293K
--
Electrical Conductivity
--
First Ionization Potential
--
Second Ionization Potential
--
Third Ionization Potential
--
Ionic Radius
--
Oxydation States
--
Lattice Parameter
--
Lattice Parameter 2
--
Lattice Parameter 3
--
Pronounced

oon-nun-OON-i-em

Discovered by

Heavy Ion Research Laboratory (HIRL)

Discovery date

1994

Orbital configuration
2,8,18,32,32,18,1

Download the Periodic Table

Explore Other Unknowns

286
113

Nh

Nihonium
281
110

Ds

Darmstadtium
278
109

Mt

Meitnerium
293
117

Ts

Tennessine
293
116

Lv

Livermorium
289
114

Fl

Flerovium
289
115

Mc

Moscovium
Unknown elements (or transactinides) are the heaviest elements of the periodic table. These are meitnerium (Mt, atomic number 109), darmstadtium (Ds, atomic number 110), roentgenium (Rg, atomic number 111), nihonium (Nh, atomic number 113), moscovium (Mc, atomic number 115), livermorium (Lv, atomic number 116) and tennessine (Ts, atomic number 117).
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