Antimony (Látìnì: stibium) is a chemical element with symbol Sb 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. It was established to be an element around the 17th century.

Antimony, 51Sb
Àdàkọ:Infobox element/symbol-to-top-image/alt
Antimony
Pípè
Ìhànsójúsilvery lustrous gray
Ìwúwo átọ̀mù Ar, std(Sb)121.760(1)Àdàkọ:CIAAW2013
nọ́mbà ìsújọSb:
Antimony ní orí tábìlì àyè
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Mercury (element) Thallium Lead Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Nihonium Flerovium Moscovium Livermorium Tennessine Oganesson
As

Sb

Bi
tinantimonytellurium
Nọ́mbà átọ̀mù (Z)51
Ẹgbẹ́group 15 (pnictogens)
Àyèàyè 5
Àdìpọ̀Àdìpọ̀-p
Ẹ̀ka ẹ́límẹ́ntìÀdàkọ:Infobox element/category format
Ìtò ẹ̀lẹ́ktrọ́nùÀdàkọ:Infobox element/symbol-to-electron-configuration
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan2, 8, 18, 18, 5
Àwọn ohun ìní ara
Ìfarahàn at STPsolid
Ìgbà ìyọ́903.78 K ​(630.63 °C, ​1167.13 °F)
Ígbà ìhó1860 K ​(1587 °C, ​2889 °F)
Kíki (near r.t.)6.697 g/cm3
when liquid (at m.p.)6.53 g/cm3
Heat of fusion19.79 kJ/mol
Heat of 193.43 kJ/mol
Molar heat capacity25.23 J/(mol·K)
 pressure
Atomic properties
Oxidation statesÀdàkọ:Infobox element/symbol-to-oxidation-state
ElectronegativityPauling scale: 2.05
energies
Atomic radiusempirical: 140 pm
Covalent radius139±5 pm
Van der Waals radius206 pm
Àdàkọ:Infobox element/spectral lines
Other properties
Natural occurrenceÀdàkọ:Infobox element/symbol-to-occurrence
Crystal structureÀdàkọ:Infobox element/crystal structure
Speed of sound thin rod3420 m/s (at 20 °C)
Thermal expansion11 µm/(m·K) (at 25 °C)
Thermal conductivity24.4 W/(m·K)
Electrical resistivity417 n Ω·m (at 20 °C)
Magnetic orderingdiamagnetic[1]
Young's modulus55 GPa
Shear modulus20 GPa
Bulk modulus42 GPa
Mohs hardness3.0
Brinell hardness294 MPa
CAS Number7440-36-0
Main isotopes of antimony
Àdàkọ:Infobox element/isotopes table
Àdàkọ:Category-inline
| references



ItokasiÀtúnṣe

  1. Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81th edition, CRC press.