Element 44 of Periodic table is
Ruthenium with atomic number 44,
atomic weight 101.07.
Ruthenium, symbol Ru, has a
Simple Hexagonal structure and Silver color.
Ruthenium is a transition metal element.
Know everything about Ruthenium Facts, Physical Properties, Chemical
Properties, Electronic configuration, Atomic and Crystal Structure.
Ruthenium is a chemical element with symbol Ru and atomic number 44. It is a rare transition metal belonging to the platinum group of the periodic table. Like the other metals of the platinum group, ruthenium is inert to most other chemicals.
Read key information and facts about element Ruthenium
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
44 to find Ruthenium 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 Ruthenium on periodic
table look for cross section of group 8 and period
5 in the modern periodic table.
Interactive Periodic Table to Understand
and Learn Cool Trends
The element Ruthenium was discovered by Karl Ernst Claus in year
1844 in Russia
derived its name from Ruthenia, the New Latin name for Russia
The table below shows the abundance of Ruthenium in Universe, Sun, Meteorites,
Earth's Crust, Oceans and Human Body.
The solid state structure of Ruthenium is Simple Hexagonal.
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.
Ruthenium atoms have 44 electrons and
the electronic shell structure is [2, 8, 18, 15, 1] with Atomic Term Symbol (Quantum Numbers) 5F5.
Shell Structure of Ruthenium - Electrons per energy
The ground state electronic configuration of Neutral Ruthenium atom is
[Kr] 4d7 5s1.
The portion of Ruthenium configuration that is equivalent to the noble gas of
the preceding period, is abbreviated as [Kr]. 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 4d7 5s1, electrons in
the outermost shell that determine the chemical properties of the element.
Complete ground state electronic configuration for the Ruthenium atom, Unabbreviated electronic configuration
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d7 5s1
Ruthenium atomic radius is 178 pm, while it's covalent radius is 126 pm.
The electron affinity of Ruthenium is 101.3 kJ/mol
Refer to table below for Ionization energies of Ruthenium
Refer to below table for Ruthenium Physical Properties
Ruthenium is Conductor of electricity. Refer to
below for the Electrical properties of Ruthenium
Refer to table below for Thermal properties of Ruthenium
Isotopes of rhodium. Naturally occurring Ruthenium has
7 stable isotope -
100Ru, 101Ru, 102Ru, 104Ru, 96Ru, 98Ru, 99Ru.
List of unique identifiers to search the element in various chemical registry databases