Antimony

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Antimony, 51Sb
Antimon Barren von 16 kg.jpg
Antimony
Pípè
Ìhànsójúsilvery lustrous gray
Ìwúwo átọ̀mù Ar, std(Sb)121.760(1)[1]
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 ẹ́límẹ́ntì  Metalloid
Ìtò ẹ̀lẹ́ktrọ́nù[Kr] 4d10 5s2 5p3
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
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 807 876 1011 1219 1491 1858
Atomic properties
Oxidation states−3, −2, −1, 0,[2] +1, +2, +3, +4, +5 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
ElectronegativityPauling scale: 2.05
energies
Atomic radiusempirical: 140 pm
Covalent radius139±5 pm
Van der Waals radius206 pm
Color lines in a spectral range
Spectral lines of antimony
Other properties
Natural occurrenceprimordial
Crystal structurerhombohedral
Rhombohedral crystal structure for antimony
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[3]
Young's modulus55 GPa
Shear modulus20 GPa
Bulk modulus42 GPa
Mohs hardness3.0
Brinell hardness294 MPa
CAS Number7440-36-0
Main isotopes of antimony
Iso­tope Abun­dance Half-life (t1/2) Decay mode Pro­duct
121Sb 57.36% 121Sb is stable with 70 neutrons
123Sb 42.64% 123Sb is stable with 72 neutrons
125Sb syn 2.7582 y β 0.767 125Te
Àdàkọ:Category-inline
| references

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.



Itokasi[àtúnṣe | àtúnṣe àmìọ̀rọ̀]

  1. Meija, Juris; Coplen, Tyler B.; Berglund, Michael; Brand, Willi A.; De Bièvre, Paul; Gröning, Manfred; Holden, Norman E.; Irrgeher, Johanna et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry 88 (3): 265–91. doi:10.1515/pac-2015-0305. 
  2. Anastas Sidiropoulos. "Studies of N-heterocyclic Carbene (NHC) Complexes of the Main Group Elements". p. 39. https://pdfs.semanticscholar.org/8817/39f9dfc007d7f77dd7baa63fe12e6079f8ef.pdf. 
  3. Magnetic susceptibility of the elements and inorganic compounds, in Handbook of Chemistry and Physics 81th edition, CRC press.