Àdàkọ:Infobox sílíkọ́nù

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Sílíkọ́nù, 14Si
Àdàkọ:Infobox element/symbol-to-top-image/alt
Sílíkọ́nù
Pípè
Ìhànsójúcrystalline, reflective with bluish-tinged faces
Ìwúwo átọ̀mù Ar, std(Si)[28.08428.086] conventional: 28.085
nọ́mbà ìsújọSi:
Sílíkọ́nù 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
C

Si

Ge
aluminiumsílíkọ́nùphosphorus
Nọ́mbà átọ̀mù (Z)14
Ẹgbẹ́group 14 (carbon group)
Àyèàyè 3
Àdìpọ̀Àdìpọ̀-p
Ẹ̀ka ẹ́límẹ́ntìÀdàkọ:Infobox element/category format
Ìtò ẹ̀lẹ́ktrọ́nùÀdàkọ:Infobox element/symbol-to-electron-configuration
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan2, 8, 4
Àwọn ohun ìní ara
Ìfarahàn at STPsolid
Ìgbà ìyọ́1687 K ​(1414 °C, ​2577 °F)
Ígbà ìhó3538 K ​(3265 °C, ​5909 °F)
Kíki (near r.t.)2.3290 g/cm3
when liquid (at m.p.)2.57 g/cm3
Heat of fusion50.21 kJ/mol
Heat of 359 kJ/mol
Molar heat capacity19.789 J/(mol·K)
 pressure
Atomic properties
Oxidation statesÀdàkọ:Infobox element/symbol-to-oxidation-state
ElectronegativityPauling scale: 1.90
energies
Atomic radiusempirical: 111 pm
Covalent radius111 pm
Van der Waals radius210 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 rod8433 m/s (at 20 °C)
Thermal expansion2.6 µm/(m·K) (at 25 °C)
Thermal conductivity149 W/(m·K)
Electrical resistivity103[1] Ω·m (at 20 °C)
Magnetic orderingdiamagnetic[2]
Young's modulus130-188[3] GPa
Shear modulus51-80[3] GPa
Bulk modulus97.6[3] GPa
Poisson ratio0.064 - 0.28[3]
Mohs hardness7
CAS Number7440-21-3
History
PredictionAntoine Lavoisier (1787)
DiscoveryJöns Jacob Berzelius[4][5] (1824)
First isolationJöns Jacob Berzelius (1824)
Named byThomas Thomson (1831)
Main isotopes of sílíkọ́nù
Àdàkọ:Infobox element/isotopes table
Àdàkọ:Category-inline
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References

  1. Physical Properties of Silicon. New Semiconductor Materials. Characteristics and Properties. Ioffe Institute
  2. Magnetic susceptibility of the elements and inorganic compounds, in Àdàkọ:RubberBible86th
  3. 3.0 3.1 3.2 3.3 [1] Hopcroft, et al., "What is the Young's Modulus of Silicon?" IEEE Journal of Microelectromechanical Systems, 2010
  4. Weeks, Mary Elvira (1932). "The discovery of the elements: XII. Other elements isolated with the aid of potassium and sodium: beryllium, boron, silicon, and aluminum". Journal of Chemical Education: 1386–1412. 
  5. Voronkov, M. G. (2007). "Silicon era". Russian Journal of Applied Chemistry 80 (12): 2190. doi:10.1134/S1070427207120397. 
  6. Ram, R. S. et al. (1998). "Fourier Transform Emission Spectroscopy of the A2D–X2P Transition of SiH and SiD". J. Mol. Spectr. 190: 341–352. PMID 9668026. http://bernath.uwaterloo.ca/media/184.pdf.