Element 111 of Periodic table is
Roentgenium with atomic number 111,
atomic weight 272.
Roentgenium, symbol Rg, has a
Body Centered Cubic structure and unknown color.
Roentgenium is a transition_metal element.
Trivial name of Roentgenium is coinage metals.
Know everything about Roentgenium Facts, Physical Properties, Chemical
Properties, Electronic configuration, Atomic and Crystal Structure.
Roentgenium is a chemical element with symbol Rg and atomic number 111. It is an extremely radioactive synthetic element (an element that can be created in a laboratory but is not found in nature); the most stable known isotope, roentgenium-282, has a half-life of 2.1 minutes. Roentgenium was first created in 1994 by the GSI Helmholtz Centre for Heavy Ion Research near Darmstadt, Germany.
Read key information and facts about element Roentgenium
Explore our interactive periodic table
Periodic table is arranged by atomic number, number of protons in the nucleus which is same as number of
The atomic number increases from left to right. Periodic table starts at top left ( Atomic number 1) and
ends at bottom right (atomic number 118). Therefore you can directly look for atomic number
111 to find Roentgenium on periodic table.
Another way to read periodic table and locate an element is by using group number (column)
and period number (row). To locate Roentgenium on periodic
table look for cross section of group 11 and period
7 in the modern periodic table.
Interactive Periodic Table to Understand
and Learn Cool Trends
The element Roentgenium was discovered by Gesellschaft für Schwerionenforschung in year
1994 in Germany
derived its name from Wilhelm Conrad Röntgen, physicist
The table below shows the abundance of Roentgenium in Universe, Sun, Meteorites,
Earth's Crust, Oceans and Human Body.
The solid state structure of Roentgenium is Body Centered Cubic.
The Crystal structure can be described in terms of its unit Cell. The unit Cells repeats itself in
dimensional space to form the structure.
The unit cell is represented in terms of its lattice parameters, which are the lengths of the cell
Lattice Constants (a, b and c)
and the angles between them Lattice Angles (alpha, beta and gamma).
The positions of the atoms inside the unit cell are described by the set of atomic positions (
xi, yi, zi) measured from a reference lattice point.
The symmetry properties of the crystal are described by the concept of space groups. All possible
symmetric arrangements of particles in three-dimensional space are described by the 230 space groups
(219 distinct types, or 230 if chiral copies are considered distinct.
Roentgenium atoms have 111 electrons and
the electronic shell structure is [2, 8, 18, 32, 32, 17, 2] with Atomic Term Symbol (Quantum Numbers) 2S1/2.
Shell Structure of Roentgenium - Electrons per energy
The ground state electronic configuration of Neutral Roentgenium atom is
[Rn] 5f14 6d10 7s1.
The portion of Roentgenium configuration that is equivalent to the noble gas of
the preceding period, is abbreviated as [Rn]. For atoms with many electrons, this
notation can become lengthy and so an abbreviated notation is used.This is important as it is
the Valence electrons 5f14 6d10 7s1, electrons in
the outermost shell that determine the chemical properties of the element.
Complete ground state electronic configuration for the Roentgenium atom, Unabbreviated electronic configuration
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d10 7s1
Roentgenium atomic radius is N/A, while it's covalent radius is N/A.
The electron affinity of Roentgenium is N/A
Refer to table below for Ionization energies of Roentgenium
Refer to below table for Roentgenium Physical Properties
Roentgenium is N/A of electricity. Refer to
below for the Electrical properties of Roentgenium
Refer to table below for Thermal properties of Roentgenium
Isotopes of rhodium. Naturally occurring Roentgenium has
1 stable isotope -
List of unique identifiers to search the element in various chemical registry databases