magnesium 25 | has symbol 25Mg | ![2001-09-27 09:28:59.0 2001-09-27 09:28:59.0](facet.gif) |
has natural abundance 10.00% | ![2001-09-27 09:28:59.0 2001-09-27 09:28:59.0](facet.gif) |
has NMR frequency 6.1195 MHz where 1H = 100 MHz; 2.3488 T | ![2001-09-27 09:28:59.0 2001-09-27 09:28:59.0](facet.gif) |
has nuclear quadrupole moment 0.1994 × 10-28 m2 | ![2001-09-27 09:28:59.0 2001-09-27 09:28:59.0](facet.gif) |
has magnetogyric ratio 1.6375 × 107 rad T-1 s-1 | ![2001-09-27 09:28:59.0 2001-09-27 09:28:59.0](facet.gif) |
has NMR receptivity 1.54 where 13C = 1.00 | ![2001-09-27 09:28:59.0 2001-09-27 09:28:59.0](facet.gif) |
has relative NMR sensitivity 2.67 × 10-3 where 1H = 1.00 | ![2001-09-27 09:28:59.0 2001-09-27 09:28:59.0](facet.gif) |
has nuclear magnetic moment μ = -0.85546 nuclear magnetons with diamagnetic correction | ![has source: Fuller, G.H. 1976, <i>Journal of Physical Chemistry Reference Data</i> <b>5</b> 835 'Nuclear Spins and Moments', 2001-09-27 09:28:59.0 has source: Fuller, G.H. 1976, <i>Journal of Physical Chemistry Reference Data</i> <b>5</b> 835 'Nuclear Spins and Moments', 2001-09-27 09:28:59.0](facet.gif) |
has nuclear spin I = 5/2+ h/2π | ![has source: Fuller, G.H. 1976, <i>Journal of Physical Chemistry Reference Data</i> <b>5</b> 835 'Nuclear Spins and Moments', 2001-09-27 09:28:59.0 has source: Fuller, G.H. 1976, <i>Journal of Physical Chemistry Reference Data</i> <b>5</b> 835 'Nuclear Spins and Moments', 2001-09-27 09:28:59.0](facet.gif) |
has number of nucleons 25 | ![2001-09-27 09:28:59.0 2001-09-27 09:28:59.0](facet.gif) |
has number of neutrons 13 | ![2001-09-27 09:28:59.0 2001-09-27 09:28:59.0](facet.gif) |
has atomic mass 24.985837 | ![2001-09-27 09:28:59.0 2001-09-27 09:28:59.0](facet.gif) |
has uses isotopically enriched samples available for experimental purposes | ![2001-09-27 09:28:59.0 2001-09-27 09:28:59.0](facet.gif) |
has uses Nulclear Magnetic Resonance | ![2001-09-27 09:28:59.0 2001-09-27 09:28:59.0](facet.gif) |
is an instance of magnesium | ![has URL: http://nucleardata.nuclear.lu.se/nucleardata/toi/nuclide.asp?iZA=120025, 2001-09-27 09:28:59.0 has URL: http://nucleardata.nuclear.lu.se/nucleardata/toi/nuclide.asp?iZA=120025, 2001-09-27 09:28:59.0](facet.gif) |
magnesium | has lethal intake 8100 mg kg-1 for chloride, oral, rat | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has reserves > 2 × 1010 tonnes as ores; and > 1 × 1024 tonnes in the sea | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has main mining area Austria, China, Poland, Russia, USA, India, Greece, Canada | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has mineral brucite, carnalite, cordierite, diopside, dolomite, enstatite, epsomite, kiersite, magnesite, pyrope, spinel | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has neutron scattering length 0.5375 × 10-12 cm | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has electron affinity -21 kJ mol-1 from Mg to Mg- | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has toxic intake low toxicity | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has poisson's ratio 0.291 GPa | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has bulk modulus 35.6 GPa | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has rigidity modulus 17.3 GPa | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has young's modulus 44.7 GPa | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has mass magnetic susceptibility +6.8 × 10-9 kg-1 m3 for solid | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has electrical resistivity 4.38 × 10-8 Ω m at 293 K | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has covalent radii 136 pm | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has thermal neutron capture cross section 0.063 barns | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has longest lived isotope magnesium 24 | ![2001-09-27 09:28:59.0 2001-09-27 09:28:59.0](facet.gif) |
has isotope mass range 20 to 31 | ![2001-09-27 09:28:59.0 2001-09-27 09:28:59.0](facet.gif) |
has number of isotopes 12 including nuclear isomers | ![2001-09-27 09:28:59.0 2001-09-27 09:28:59.0](facet.gif) |
has pronunciation mag-neez-iuhm | ![2001-09-27 09:28:59.0 2001-09-27 09:28:59.0](facet.gif) |
has name origin Magnesia = district of Thessaly from Greek | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has discovery location Edinburgh, Scotland | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has abundance 4.0 × 107 in Sun relative to H = 1 × 1012 | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has abundance 23000 p.p.m. in Earth's crust | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has abundance 1200 p.p.m. in seawater | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has specimen chips, granules, powder, ribbon, rod or turnings. Safe. | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has world production 325000 tonnes year-1 | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has chief source seawater; and the ores or dolomite, magnesite; carnallite and brucite | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has mass absorption coefficient 38.6 cm2 g-1 for CuKα X-ray diffraction | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has mass absorption coefficient 4.11 cm2 g-1 for MoKα X-ray diffraction | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has space group P63/mmc | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has crystal cell dimension a = 320.94; c = 521.03 pm | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has crystal type h.c.p. | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has atomic emission line 279.553 nm for Mg II | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has atomic emission line 280.270 nm for Mg II | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has atomic emission line 285.213 nm for Mg I (strong) | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has atomic emission line 383.829 nm for Mg I | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has atomic emission line 518.361 nm for Mg I | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has term symbol 1S0 in ground state | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has electron configuration [Ne]3s2 in ground state | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has mass of element in person 19 g for a 70 kg average person | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has daily dietary intake 250 - 380 mg | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has level in humans 37.8 mg dm-3 in blood | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has level in humans 700 - 1800 p.p.m. in bone | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has level in humans 590 p.p.m. in liver | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has level in humans 900 p.p.m. in muscle | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has hazard compounds vary in toxicity but no evidence that metal produces systemic poisoning | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has biological role essential to all species | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has linear expansion coefficient 26.1 × 10-6 K-1 | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has thermal conductivity 156 W m-1 K-1 at 300 K | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has molar volume 13.98 cm3 | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has heat capacity 24.89 J K-1 mol-1 for solid at constant pressure 0.1 MPa at 298.15 K | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has heat capacity 20.786 J K-1 mol-1 for gas at constant pressure 0.1 MPa at 298.15 K | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has heat of vaporization 128.7 kJ mol-1 | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has heat of fusion 9.04 kJ mol-1 | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has boiling point 1363 K | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has melting point 922.0 K | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has electronegativity 1.31 Pauling | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has relative atomic mass 24.3050 in units of 12C = 12.000 | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has ionic radii 79 pm for Mg2+ | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has atomic radii 160 pm | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has number of protons 12 | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has registry number 7439-95-4 for Chemical Abstracts System database | ![has URL: http://info.cas.org, 2001-09-27 09:28:58.0 has URL: http://info.cas.org, 2001-09-27 09:28:58.0](facet.gif) |
has density 1738 kg m-3 for solid at 293 K | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has density 1585 kg m-3 for liquid at 922.0 K melting point | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has synthesis mechanism electrolysis of fused MgCl2 | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has ocean oxidation state II | ![2001-09-27 09:28:28.0 2001-09-27 09:28:28.0](facet.gif) |
has ocean residence time 1 × 107 years | ![2001-09-27 09:28:28.0 2001-09-27 09:28:28.0](facet.gif) |
has atomic number 12 | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
reacts with air when ignited | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
reacts with hot water | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has discovery date 1755 | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has discoverer Joseph Black | ![2001-09-27 09:28:58.0 2001-09-27 09:28:58.0](facet.gif) |
has image ![](images/element/Mg.jpg) | ![2001-09-27 09:28:33.0 2001-09-27 09:28:33.0](facet.gif) |
alkali earth metal | has hardness malleable, extrudable and machinable | ![2001-09-27 09:28:19.0 2001-09-27 09:28:19.0](facet.gif) |
accumulating oceanic element | has ocean concentration depth indenpendent | ![2001-09-27 09:28:28.0 2001-09-27 09:28:28.0](facet.gif) |
lithophile element | has occurrence in silicate materials such as igneous rocks | ![2001-09-27 09:28:26.0 2001-09-27 09:28:26.0](facet.gif) |
element | is a part of Universe | ![2001-09-27 09:32:17.0 2001-09-27 09:32:17.0](facet.gif) |
has synonym atom | ![2001-09-27 09:28:19.0 2001-09-27 09:28:19.0](facet.gif) |
particle | obeys uncertainty principle | ![2001-09-27 09:28:02.0 2001-09-27 09:28:02.0](facet.gif) |
has frequency inversely proportional to the wavelength | ![2001-09-27 09:28:02.0 2001-09-27 09:28:02.0](facet.gif) |
has wavelength inversely proportional to its momentum | ![2001-09-27 09:28:02.0 2001-09-27 09:28:02.0](facet.gif) |
has charge | ![2001-09-27 09:28:01.0 2001-09-27 09:28:01.0](facet.gif) |
has mass | ![2001-09-27 09:28:02.0 2001-09-27 09:28:02.0](facet.gif) |
physical object | has location or center of gravity | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has angular momentum | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has velocity | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has momentum | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has temperature | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has volume | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has extent | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has material | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |