Element 37 of Periodic table is
Rubidium with atomic number 37,
atomic weight 85.4678.
Rubidium, symbol Rb, has a
Body Centered Cubic structure and Silver color.
Rubidium is a alkali metal element.
Trivial name of Rubidium is alkali metals*.
Know everything about Rubidium Facts, Physical Properties, Chemical
Properties, Electronic configuration, Atomic and Crystal Structure.
Rubidium is a chemical element with symbol Rb and atomic number 37. Rubidium is a soft, silvery-white metallic element of the alkali metal group, with an atomic mass of 85.4678. Elemental rubidium is highly reactive, with properties similar to those of other alkali metals, such as very rapid oxidation in air.
Read key information and facts about element Rubidium
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
37 to find Rubidium 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 Rubidium on periodic
table look for cross section of group 1 and period
5 in the modern periodic table.
Interactive Periodic Table to Understand
and Learn Cool Trends
The element Rubidium was discovered by Robert Bunsen in year
1861 in Germany
derived its name from the Latin rubidus, meaning 'deep red'
The table below shows the abundance of Rubidium in Universe, Sun, Meteorites,
Earth's Crust, Oceans and Human Body.
The solid state structure of Rubidium 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.
Rubidium atoms have 37 electrons and
the electronic shell structure is [2, 8, 18, 8, 1] with Atomic Term Symbol (Quantum Numbers) 2S1/2.
Shell Structure of Rubidium - Electrons per energy
The ground state electronic configuration of Neutral Rubidium atom is
The portion of Rubidium 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 5s1, electrons in
the outermost shell that determine the chemical properties of the element.
Complete ground state electronic configuration for the Rubidium atom, Unabbreviated electronic configuration
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s1
Rubidium atomic radius is 265 pm, while it's covalent radius is 211 pm.
The electron affinity of Rubidium is 46.9 kJ/mol
Refer to table below for Ionization energies of Rubidium
Refer to below table for Rubidium Physical Properties
Rubidium is Conductor of electricity. Refer to
below for the Electrical properties of Rubidium
Refer to table below for Thermal properties of Rubidium
Isotopes of rhodium. Naturally occurring Rubidium has
1 stable isotope -
List of unique identifiers to search the element in various chemical registry databases