Element 51 of Periodic table is
Antimony with atomic number 51,
atomic weight 121.76.
Antimony, symbol Sb, has a
Simple Trigonal structure and Silver color.
Antimony is a metalloid element.
Trivial name of Antimony is pentels, pnictogens*.
Know everything about Antimony Facts, Physical Properties, Chemical
Properties, Electronic configuration, Atomic and Crystal Structure.
Antimony is a chemical element with symbol Sb (from Latin:stibium) and atomic number 51. A lustrous gray metalloid, it is found in nature mainly as the sulfide mineral stibnite (Sb2S3). Antimony compounds have been known since ancient times and were used for cosmetics; metallic antimony was also known, but it was erroneously identified as lead upon its discovery.
Read key information and facts about element Antimony
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
51 to find Antimony 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 Antimony on periodic
table look for cross section of group 15 and period
5 in the modern periodic table.
Interactive Periodic Table to Understand
and Learn Cool Trends
The element Antimony was discovered by unknown in year
3000 BC in unknown place
derived its name from the Greek anti, 'against', and monos, 'alone' (stibium in Latin)
The table below shows the abundance of Antimony in Universe, Sun, Meteorites,
Earth's Crust, Oceans and Human Body.
The solid state structure of Antimony 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.
Antimony atoms have 51 electrons and
the electronic shell structure is [2, 8, 18, 18, 5] with Atomic Term Symbol (Quantum Numbers) 4S3/2.
Shell Structure of Antimony - Electrons per energy
The ground state electronic configuration of Neutral Antimony atom is
[Kr] 4d10 5s2 5p3.
The portion of Antimony 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 4d10 5s2 5p3, electrons in
the outermost shell that determine the chemical properties of the element.
Complete ground state electronic configuration for the Antimony atom, Unabbreviated electronic configuration
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p3
Antimony atomic radius is 133 pm, while it's covalent radius is 138 pm.
The electron affinity of Antimony is 103.2 kJ/mol
Refer to table below for Ionization energies of Antimony
Refer to below table for Antimony Physical Properties
Antimony is Conductor of electricity. Refer to
below for the Electrical properties of Antimony
Refer to table below for Thermal properties of Antimony
Isotopes of rhodium. Naturally occurring Antimony has
2 stable isotope -
List of unique identifiers to search the element in various chemical registry databases