Template:Infobox magnesium

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Magnesium,  12Mg
CSIRO ScienceImage 2893 Crystalised magnesium.jpg
General properties
Appearance shiny gray solit
Staundart atomic wecht (Ar, staundart) [24.30424.307] conventional: 24.305
Magnesium in the periodic cairt
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 Airn Cobalt Nickel Capper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Siller (element) 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 Gowd Mercur (element) Thallium Leid (element) 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 Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium
Be

Mg

Ca
sodiummagnesiumalumeenium
Atomic nummer (Z) 12
Group group 2 (alkaline yird metals)
Period period 3
Element category   alkalineearthmetal
Block s-block
Electron confeeguration [Ne] 3s2
Electrons per shell
2, 8, 2
Pheesical properties
Phase (at STP) solit
Meltin pynt 923 K ​(650 °C, ​1202 °F)
Bylin pynt 1363 K ​(1091 °C, ​1994 °F)
Density (near r.t.) 1.738 g/cm3
when liquid (at m.p.) 1.584 g/cm3
Heat o fusion 8.48 kJ/mol
Heat o vapourisation 128 kJ/mol
Molar heat capacity 24.869 J/(mol·K)
Vapour pressur
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 701 773 861 971 1132 1361
Atomic properties
Oxidation states +2, +1[1] ​(a strangly basic oxide)
Electronegativity Pauling scale: 1.31
Ionisation energies
  • 1st: 737.7 kJ/mol
  • 2nd: 1450.7 kJ/mol
  • 3rd: 7732.7 kJ/mol
  • (more)
Atomic radius empirical: 160 pm
Covalent radius 141±7 pm
Van der Waals radius 173 pm
Coloyr lines in a spectral range
Spectral lines o Infobox magnesium
Miscellanea
Creestal structurhexagonal close-packed (hcp)
Hexagonal close packed creestal structur for magnesium
Speed o soond thin rod 4940 m/s (at r.t.) (annealed)
Thermal expansion 24.8 µm/(m·K) (at 25 °C)
Thermal conductivity 156 W/(m·K)
Electrical resistivity 43.9 nΩ·m (at 20 °C)
Magnetic orderin paramagnetic
Magnetic susceptibility +13.1·10−6 cm3/mol (298 K)[2]
Young's modulus 45 GPa
Shear modulus 17 GPa
Bouk modulus 35.4[3] GPa
Poisson ratio 0.290
Mohs haurdness 1–2.5
Brinell haurdness 44–260 MPa
CAS Nummer 7439-95-4
History
Namin after Magnesia, Greece
Diskivery Joseph Black (1755)
First isolation Humphry Davy (1808)
Main isotopes o magnesium
Iso­tope Abun­dance Hauf-life (t1/2) Decay mode Pro­duct
24Mg 79.0% stable
25Mg 10.0% stable
26Mg 11.0% stable
| references | in Wikidata
Magnesium
Na ←
iso
12
Mg E
→ Al
v · e

References

Thir references will appear in the airticle, but this list appears anerly on this page.
  1. Bernath, P. F.; Black, J. H. & Brault, J. W. (1985). "The spectrum of magnesium hydride" (PDF). Astrophysical Journal. 298: 375. Bibcode:1985ApJ...298..375B. doi:10.1086/163620. 
  2. Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4. 
  3. K. A. Gschneider, Solid State Phys. 16, 308 (1964)
  4. Meija, J.; 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. 
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