Element 5 of Periodic table is
Boron with atomic number 5,
atomic weight 10.811.
Boron, symbol B, has a
Simple Trigonal structure and Black color.
Boron is a metalloid element.
Trivial name of Boron is triels, icosagens.
Know everything about Boron Facts, Physical Properties, Chemical
Properties, Electronic configuration, Atomic and Crystal Structure.
Boron is a metalloid chemical element with symbol B and atomic number 5. Produced entirely by cosmic ray spallation and supernovae and not by stellar nucleosynthesis, it is a low-abundance element in both the Solar system and the Earth's crust. Boron is concentrated on Earth by the water-solubility of its more common naturally occurring compounds, the borate minerals.
Read key information and facts about element Boron
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
5 to find Boron 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 Boron on periodic
table look for cross section of group 13 and period
2 in the modern periodic table.
Interactive Periodic Table to Understand
and Learn Cool Trends
The element Boron was discovered by Joseph Louis Gay-Lussac in year
1808 in France and United Kingdom
derived its name from borax, a mineral
The table below shows the abundance of Boron in Universe, Sun, Meteorites,
Earth's Crust, Oceans and Human Body.
The solid state structure of Boron is Simple Trigonal.
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.
Boron atoms have 5 electrons and
the electronic shell structure is [2, 3] with Atomic Term Symbol (Quantum Numbers) 2P1/2.
Shell Structure of Boron - Electrons per energy
The ground state electronic configuration of Neutral Boron atom is
[He] 2s2 2p1.
The portion of Boron configuration that is equivalent to the noble gas of
the preceding period, is abbreviated as [He]. 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 2s2 2p1, electrons in
the outermost shell that determine the chemical properties of the element.
Complete ground state electronic configuration for the Boron atom, Unabbreviated electronic configuration
1s2 2s2 2p1
Boron atomic radius is 87 pm, while it's covalent radius is 82 pm.
The electron affinity of Boron is 26.7 kJ/mol
Refer to table below for Ionization energies of Boron
Refer to below table for Boron Physical Properties
Boron is Insulator of electricity. Refer to
below for the Electrical properties of Boron
Refer to table below for Thermal properties of Boron
Isotopes of rhodium. Naturally occurring Boron has
2 stable isotope -
List of unique identifiers to search the element in various chemical registry databases