"Magnesium" siû-thin kiên ke chhâ-phe̍t
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Thi 1 hàng:
{{Infobox element
|name=magnesium
|alt name=
|number=12
|symbol=Mg
|left=[[Na̍p]]
|right=[[Lî]]
|above=[[beryllium|Be]]
|below=[[Koi|Ca]]
|series=kán-thú kîm-su̍k
|series comment=
|group=2
|period=3
|block=s
|series color=
|appearance=shiny grey solid
|image name=Magnesium.jpg
|image size=
|image name comment=
|image name 2=Magnesium Spectra.jpg
|image name 2 comment=Spectral lines of magnesium
|atomic mass=24.305
|atomic mass ref=<ref name="CIAAW">[http://www.ciaaw.org/pubs/TSAW2013_xls.xls Conventional Atomic Weights 2013]. [[Commission on Isotopic Abundances and Atomic Weights]]</ref>
|atomic mass 2=
|atomic mass comment=(24.304–24.307)<ref name="IUPAC">[http://www.ciaaw.org/atomic-weights.htm Standard Atomic Weights 2013]. [[Commission on Isotopic Abundances and Atomic Weights]]</ref>
|electron configuration=[[[neon|Ne]]] 3s<sup>2</sup>
|electrons per shell=2, 8, 2
|color=
|phase=ku-thí
|phase comment=
|density gplstp=
|density gpcm3nrt=1.738
|density gpcm3nrt 2=
|density gpcm3mp=1.584
|melting point K=923
|melting point C=650
|melting point F=1202
|boiling point K=1363
|boiling point C=1091
|boiling point F=1994
|triple point K=
|triple point kPa=
|critical point K=
|critical point MPa=
|heat fusion=8.48
|heat fusion 2=
|heat vaporization=128
|heat capacity=24.869
|vapor pressure 1=701
|vapor pressure 10=773
|vapor pressure 100=861
|vapor pressure 1 k=971
|vapor pressure 10 k=1132
|vapor pressure 100 k=1361
|vapor pressure comment=
|crystal structure=hexagonal close packed
|oxidation states='''+2''', +1
|oxidation states ref=<ref>{{cite journal|url=http://bernath.uwaterloo.ca/media/24.pdf| title=The spectrum of magnesium hydride| author=Bernath, P. F., Black, J. H., & Brault, J. W.| bibcode=1985ApJ...298..375B | doi=10.1086/163620
|journal=Astrophysical Journal|volume=298| year=1985| page=375}}</ref>
|oxidation states comment=(a strongly [[base (chemistry)|basic]] oxide)
|electronegativity=1.31
|number of ionization energies=4
|ionization energy 1=737.7
|ionization energy 2=1450.7
|ionization energy 3=7732.7
|atomic radius=160
|covalent radius=141±7
|Van der Waals radius=173
|magnetic ordering=[[paramagnetism|paramagnetic]]
|electrical resistivity=
|electrical resistivity unit prefix=n
|electrical resistivity at 0=
|electrical resistivity at 20=43.9
|thermal conductivity=156
|thermal conductivity 2=
|thermal diffusivity=
|thermal expansion=
|thermal expansion at 25=24.8
|speed of sound=
|speed of sound rod at 20=
|speed of sound rod at r.t.=4940
|speed of sound rod at r.t. comment=(annealed)
|Young's modulus=45
|Shear modulus=17
|Bulk modulus=45
|Poisson ratio=0.290
|Mohs hardness=1–2.5
|Vickers hardness=
|Brinell hardness=44–260
|CAS number=7439-95-4
|isotopes=
{{Infobox element/isotopes stable | mn=24 | sym=Mg | na=78.99% | n=12 |firstlinks=yes}}
{{Infobox element/isotopes stable | mn=25 | sym=Mg | na=10.00% | n=13 |firstlinks=no}}
{{Infobox element/isotopes stable | mn=26 | sym=Mg | na=11.01% | n=14 |firstlinks=no}}
|isotopes comment=
|naming=after [[Magnesia (regional unit)|Magnesia]], Greece
|predicted by=
|prediction date=
|discovered by=[[Joseph Black]]
|discovery date=1755
|first isolation by=[[Humphry Davy]]
|first isolation date=1808
|named by=
|named date=
|history comment label=
|history comment=
}}
'''Magnesium''' he yit-chúng [[fa-ho̍k]] [[ngièn-su]], fa-ho̍k fù-ho vì '''Mg''', ngièn-chṳ́ su-muk he '''12''', chhai [[ngièn-su chû-khì-péu]] lî-tú phài thi 12 vi.
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