Elements
51

Sb

Antimony

Antimony (Sb) is a hard brittle silver-white semi metal that has the atomic number 51 in the periodic table. It is located in Group 15 of the periodic table. It has the symbol Sb.

Antimony has been in use by humans for years. Its mineral Stibnite was used by the Egyptians in cosmetics as black eyeliner. In the 1500s metallurgist Vannoccio Biringuccio wrote his paper “Concerning Antimony and Its Ore” focusing on Antinomy Sulfide. It was clear from this work that Antimony was isolated but metallurgists at the time did not appreciate their discoveries. Antimony despite being a metal has a low thermal conductivity and electrical conductivity and is brittle and crystalline. It is often used in the production of Lead alloys to make harder alloys. It is located in Group 15 as a metal. It has a melting point of 630°c and a boiling point of 1587°c.

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FAQ's

What is the Melting Point for Antimony?

Antimony has a Melting Point of 630.74°F, meaning at 630.74°F it will turn to a liquid.

What is the Boiling Point for Antimony?

Antimony has a Boiling Point of 1587°F, meaning at 1587°F it will turn to a Gas.

What is the Electronegativity of Antimony?

Antimony's Electronegativty is 2.05. Electronegativity is a measure of how strongly atoms attract bonding electrons to themselves.

What is the Heat of Vaporization of Antimony?

Antimony has a Heat of Vaporization of 77.14 kJ/mol.

Uses

It is alloyed with other metals to increase their hardness. Also in the manufacture of a few special types of semiconductor devices. Also in plastics and chemicals. A few kinds of over-the-counter cold and flu remedies use antimony compounds.

Sources

Found in stibnite (Sb2S3) and in valentinite (Sb2O3).

51
Protons
51
Electrons
71
Neutrons

Sb

Element Symbol
Sb
Atomic Weight
121.76
Atomic Number
51
State
Solid
Melting Point
Unknown
630.74
°C
Boiling Point
1587
Unknown
°C
Heat of Vaporization
77.14
Unknown
kJ/mol
Crystal Structure
Rhombohedral
Thermoconductivity
0.243
Unknown
W/cmK
Shells
2,8,18,18,5
Group
Metalloid
Period
5
Block
P Block
Orbitals
[Kr] 4d10 5s2 5p3
Coefficient of Thermal Expansion
11.0 10^-6 K^-1
Covalent Radius
1.40 Å
Density at 293K
6.684 g/cm³
Electrical Conductivity
0.0288 10^6/cm ohm
First Ionization Potential
8.64 V
Second Ionization Potential
16.53 V
Third Ionization Potential
25.30 V
Ionic Radius
.76 (+3) Å
Oxydation States
(±3),5
Lattice Parameter
4.5069 Å
Lattice Parameter 2
--
Lattice Parameter 3
--
Pronounced

AN-teh-MOH-ni

Discovered by

Known to the ancients.

Discovery date

3000 BC

Orbital configuration
2,8,18,18,5

Download the Periodic Table

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B

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Metalloids are the chemical elements with the properties intermediate between those of typical metals and nonmetals. There is neither standard definition of a metalloid nor agreement on elements classified as such.
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