Àdàkọ:Infobox magnésíọ̀mù

Magnésíọ̀mù, 12Mg
Àdàkọ:Infobox element/symbol-to-top-image/alt
Magnésíọ̀mù
Pípè /mæɡˈnziəm/ (mag-NEE-zee-əm)
Ìhànsójúshiny grey solid
Ìwúwo átọ̀mù Ar, std(Mg)[24.30424.307] conventional: 24.305
nọ́mbà ìsújọMg:
Magnésíọ̀mù 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
Be

Mg

Ca
sódíọ̀mùmagnésíọ̀mùalumíníọ̀mù
Nọ́mbà átọ̀mù (Z)12
Ẹgbẹ́group 2 (alkaline earth metals)
Àyèàyè 3
Àdìpọ̀Àdìpọ̀-s
Ẹ̀ka ẹ́límẹ́ntìÀdàkọ:Infobox element/category format
Ìtò ẹ̀lẹ́ktrọ́nùÀdàkọ:Infobox element/symbol-to-electron-configuration
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan2, 8, 2
Àwọn ohun ìní ara
Ìfarahàn at STPsolid
Ìgbà ìyọ́923 K ​(650 °C, ​1202 °F)
Ígbà ìhó1363 K ​(1091 °C, ​1994 °F)
Kíki (near r.t.)1.738 g/cm3
when liquid (at m.p.)1.584 g/cm3
Heat of fusion8.48 kJ/mol
Heat of 128 kJ/mol
Molar heat capacity24.869 J/(mol·K)
 pressure
Atomic properties
Oxidation statesÀdàkọ:Infobox element/symbol-to-oxidation-state
ElectronegativityPauling scale: 1.31
energies
Atomic radiusempirical: 160 pm
Covalent radius141±7 pm
Van der Waals radius173 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 rod(annealed)
4940 m/s (at r.t.)
Thermal expansion24.8 µm/(m·K) (at 25 °C)
Thermal conductivity156 W/(m·K)
Electrical resistivity43.9 n Ω·m (at 20 °C)
Magnetic orderingparamagnetic
Young's modulus45 GPa
Shear modulus17 GPa
Bulk modulus45 GPa
Poisson ratio0.290
Mohs hardness2.5
Brinell hardness260 MPa
CAS Number7439-95-4
History
DiscoveryJoseph Black (1755)
First isolationHumphry Davy (1808)
Main isotopes of magnésíọ̀mù
Àdàkọ:Infobox element/isotopes table
Àdàkọ:Category-inline
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References

  1. Bernath, P. F., Black, J. H., & Brault, J. W. (1985). "The spectrum of magnesium hydride". Astrophysical Journal 298: 375. Bibcode 1985ApJ...298..375B. doi:10.1086/163620. http://bernath.uwaterloo.ca/media/24.pdf.