مگنېزيوم

د ويکيپېډيا، وړیا پوهنغونډ له خوا
(له Magnesium نه مخ گرځېدلی)
و اصلی برخی ته ورشی د پلټنې ځای ته ورټوپ کړی
Magnesium,  12Mg
CSIRO ScienceImage 2893 Crystalised magnesium.jpg
Magnesium Spectra.jpg
Spectral lines of magnesium
عمومي خواص
Pronunciation /mæɡˈnziəm/
mag-NEE-zee-əm
Appearance shiny grey solid
Magnesium په دوراني جدول کې
Hydrogen (diatomic nonmetal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline earth metal)
Boron (metalloid)
Carbon (polyatomic nonmetal)
Nitrogen (diatomic nonmetal)
Oxygen (diatomic nonmetal)
Fluorine (diatomic nonmetal)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
Phosphorus (polyatomic nonmetal)
Sulfur (polyatomic nonmetal)
Chlorine (diatomic nonmetal)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline earth metal)
Scandium (transition metal)
Titanium (transition metal)
Vanadium (transition metal)
Chromium (transition metal)
Manganese (transition metal)
Iron (transition metal)
Cobalt (transition metal)
Nickel (transition metal)
Copper (transition metal)
Zinc (transition metal)
Gallium (post-transition metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (polyatomic nonmetal)
Bromine (diatomic nonmetal)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline earth metal)
Yttrium (transition metal)
Zirconium (transition metal)
Niobium (transition metal)
Molybdenum (transition metal)
Technetium (transition metal)
Ruthenium (transition metal)
Rhodium (transition metal)
Palladium (transition metal)
Silver (transition metal)
Cadmium (transition metal)
Indium (post-transition metal)
Tin (post-transition metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (diatomic nonmetal)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline earth metal)
Lanthanum (lanthanide)
Cerium (lanthanide)
Praseodymium (lanthanide)
Neodymium (lanthanide)
Promethium (lanthanide)
Samarium (lanthanide)
Europium (lanthanide)
Gadolinium (lanthanide)
Terbium (lanthanide)
Dysprosium (lanthanide)
Holmium (lanthanide)
Erbium (lanthanide)
Thulium (lanthanide)
Ytterbium (lanthanide)
Lutetium (lanthanide)
Hafnium (transition metal)
Tantalum (transition metal)
Tungsten (transition metal)
Rhenium (transition metal)
Osmium (transition metal)
Iridium (transition metal)
Platinum (transition metal)
Gold (transition metal)
Mercury (transition metal)
Thallium (post-transition metal)
Lead (post-transition metal)
Bismuth (post-transition metal)
Polonium (post-transition metal)
Astatine (metalloid)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline earth metal)
Actinium (actinide)
Thorium (actinide)
Protactinium (actinide)
Uranium (actinide)
Neptunium (actinide)
Plutonium (actinide)
Americium (actinide)
Curium (actinide)
Berkelium (actinide)
Californium (actinide)
Einsteinium (actinide)
Fermium (actinide)
Mendelevium (actinide)
Nobelium (actinide)
Lawrencium (actinide)
Rutherfordium (transition metal)
Dubnium (transition metal)
Seaborgium (transition metal)
Bohrium (transition metal)
Hassium (transition metal)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (transition metal)
Nihonium (unknown chemical properties)
Flerovium (unknown chemical properties)
Moscovium (unknown chemical properties)
Livermorium (unknown chemical properties)
Tennessine (unknown chemical properties)
Oganesson (unknown chemical properties)
Be

Mg

Ca
sodiummagnesiumaluminium
اټومي شمیره (Z) 12
گروپ, پیریود group 2 (alkaline earth metals), period 3
بلاک s-block
Element category   alkaline earth metal
معياري اټومي وزن (Ar)
  • [24.304, 24.307][۱]
  • conventional: 24.305
Electron configuration [Ne] 3s2
Electrons per shell
2, 8, 2
فزیکي خواص
حالت (at STP) جامد
دويلې کيدو ټکى 923 K ​(650 °C, ​1202 °F)
يشنا ټکی 1363 K ​(1091 °C, ​1994 °F)
Density near r.t. 1.738 g/cm3
when liquid, at m.p. 1.584 g/cm3
Heat of fusion 8.48 kJ/mol
Heat of vaporization 128 kJ/mol
Molar heat capacity 24.869 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 701 773 861 971 1132 1361
اټومي خواص
Oxidation states +2, +1[۲] ​(a strongly basic oxide)
Electronegativity Pauling scale: 1.31
Ionization 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
Miscellanea
Crystal structurehexagonal close-packed (hcp)
Hexagonal close packed crystal structure for magnesium
Speed of sound thin rod 4940 m/s (at r.t.) (annealed)
Thermal expansion 24.8 µm/(m·K) (at 25 °C)
د تودوخې تېرېدنه 156 W/(m·K)
Electrical resistivity 43.9 nΩ·m (at 20 °C)
Magnetic ordering paramagnetic
Magnetic susceptibility (χmol) +13.1·10−6 cm3/mol (298 K)[۳]
Young's modulus 45 GPa
Shear modulus 17 GPa
Bulk modulus 45 GPa
Poisson ratio 0.290
Mohs hardness 1–2.5
Brinell hardness 44–260 MPa
CAS Number 7439-95-4
History
Naming after Magnesia, Greece
Discovery Joseph Black (1755)
First isolation Humphry Davy (1808)
Main isotopes of magnesium
آيسو­ټوپ Abun­dance نیم ژوند (t1/2) Decay mode Pro­duct
24Mg 79.0% stable
25Mg 10.0% stable
26Mg 11.0% stable
| references | in Wikidata

مگنېزيوم (په انگرېزي: Magnesium) له کیمیاوي عناصرو څخه یو دی چې په تناوبي جدول کې د Mg سمبول او ۱۲ اتمي شمېرې په وسیله ښودل شوی دی.

مشخصات[سمول]

تاریخچه[سمول]

مرکبات[سمول]

د استعمال ځایونه[سمول]

سرچينې[سمول]

  1. Meija, J.; Coplen, T. B. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure Appl. Chem. 88 (3): 265-91. doi:10.1515/pac-2015-0305. https://www.degruyter.com/downloadpdf/j/pac.2016.88.issue-3/pac-2015-0305/pac-2015-0305.xml. 
  2. Bernath, P. F.; Black, J. H.; Brault, J. W. (1985). "The spectrum of magnesium hydride". Astrophysical Journal 298: 375. doi:10.1086/163620. Bibcode1985ApJ...298..375B. http://bernath.uwaterloo.ca/media/24.pdf. 
  3. Weast, Robert (1984). [اصطلاحي تېروتنه: د ناپېژندلې ليکنښې لوښه "۱". CRC, Handbook of Chemistry and Physics]. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4. 

Wiki letter w.svg دا ليکنه نابشپړه ده، تاسې ددې ليکنې په بشپړولو کې د ويکيپېډيا سره مرسته کولای شئ.