「Barium」調整以後𣍐蜀樣其地方
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Sĭng hiĕk: thumb|right|200px|Barium '''Barium''' sê siŏh cṳ̄ng gĭng-sṳ̆k, iâ sê siŏh cṳ̄ng huá-hŏk nguòng-só. [... |
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Dâ̤ 1 hòng:
{{Infobox element
|name=bari
|enname=barium
|laname=barium
|number=56
|symbol=Ba
|left=[[caesium|Caesi]]
|right=[[lanthanum|Lantan]]
|above=[[Strontium|Stronti]]
|below=[[Lòi (gĭng-sṳ̆k)|Radi]]
|series=giĕng-tū gĭng-sṳ̆k
|series comment=
|group=2
|period=6
|block=s
|series color=
|appearance=silvery gray; with a pale yellow tint<ref>{{Greenwood&Earnshaw|page=112}}</ref>
|image name=Barium unter Argon Schutzgas Atmosphäre.jpg
|image name comment=
|image name 2=
|image name 2 comment=
|atomic mass=137.327
|atomic mass ref=<ref name="IUPAC">[http://www.ciaaw.org/atomic-weights.htm Standard Atomic Weights 2013]. [[Commission on Isotopic Abundances and Atomic Weights]]</ref>
|atomic mass 2=7
|atomic mass comment=
|electron configuration=[[[xenon|Xe]]] 6s<sup>2</sup>
|electrons per shell=2, 8, 18, 18, 8, 2
|color=
|phase=gó-tā̤
|phase comment=
|density gplstp=
|density gpcm3nrt=3.51
|density gpcm3mp=3.338
|melting point K=1000
|melting point C=727
|melting point F=1341
|boiling point K=2118
|boiling point C=1845
|boiling point F=3353
|triple point K=
|triple point kPa=
|critical point K=
|critical point MPa=
|heat fusion=7.12
|heat vaporization=142
|heat capacity=28.07
|vapor pressure 1=911
|vapor pressure 10=1038
|vapor pressure 100=1185
|vapor pressure 1 k=1388
|vapor pressure 10 k=1686
|vapor pressure 100 k=2170
|vapor pressure comment=
|crystal structure=body-centered cubic
|oxidation states='''+2''', +1
|oxidation states comment=(a strongly [[base (chemistry)|basic]] oxide)
|electronegativity=0.89
|number of ionization energies=3
|ionization energy 1=502.9
|ionization energy 2=965.2
|ionization energy 3=3600
|atomic radius=222
|covalent radius=215±11
|Van der Waals radius=268
|magnetic ordering=[[paramagnetism|paramagnetic]]
|magnetic ordering ref=<ref>[http://www-d0.fnal.gov/hardware/cal/lvps_info/engineering/elementmagn.pdf Magnetic susceptibility of the elements and inorganic compounds], in {{RubberBible86th}}</ref>
|electrical resistivity unit prefix=n
|electrical resistivity at 0=
|electrical resistivity at 20=332
|thermal conductivity=18.4
|thermal conductivity 2=
|thermal diffusivity=
|thermal expansion=
|thermal expansion at 25=20.6
|speed of sound=
|speed of sound rod at 20=1620
|speed of sound rod at r.t.=
|Young's modulus=13
|Shear modulus=4.9
|Bulk modulus=9.6
|Poisson ratio=
|Mohs hardness=1.25
|Vickers hardness=
|Brinell hardness=
|CAS number=7440-39-3
|isotopes=
{{infobox element/isotopes decay | mn=130 | sym=Ba | na=0.106% | hl=(0.5–2.7)×10<sup>21</sup> y | dm=[[double electron capture|εε]] | de=2.620 | link1=xenon-130 | pn=130 | ps=Xe}}
{{infobox element/isotopes decay | mn=132 | sym=Ba | na=0.101% | hl=>3×10<sup>20</sup> y | dm=([[double beta decay|β<sup>+</sup>β<sup>+</sup>]]) | de=0.846 | link1=xenon-132 | pn=132 | ps=Xe}}
{{infobox element/isotopes decay | mn=133 | sym=Ba
| na=[[synthetic radioisotope|syn]] | hl=10.51 y
| dm=[[electron capture|ε]] | de=0.517 | link1=caesium-133 | pn=133 | ps=Cs}}
{{infobox element/isotopes decay | mn=134 | sym=Ba | na=2.417% | hl=– | dm=([[spontaneous fission|SF]]) | de=<40.520 | pn= | ps= }}
{{infobox element/isotopes decay | mn=135 | sym=Ba | na=6.592% | hl=– | dm=(SF) | de=<39.357 | pn= | ps= }}
{{infobox element/isotopes decay | mn=136 | sym=Ba | na=7.854% | hl=– | dm=(SF) | de=<38.041 | pn= | ps= }}
{{infobox element/isotopes decay | mn=137 | sym=Ba | na=11.23% | hl=– | dm=(SF) | de=<35.722 | pn= | ps= }}
{{infobox element/isotopes decay | mn=138 | sym=Ba | na=71.7% | hl=– | dm=(SF) | de=<34.302 | pn= | ps= }}
|isotopes comment=Decay modes in parentheses are predicted, but have not yet been observed
|discovered by=[[Carl Wilhelm Scheele]]
|discovery date=1772
|first isolation by=[[Humphry Davy]]
|first isolation date=1808
}}
'''Barium''' sê siŏh cṳ̄ng [[gĭng-sṳ̆k]], iâ sê siŏh cṳ̄ng [[huá-hŏk nguòng-só]]. [[Nguòng-cṳ̄ sê̤ṳ-só]] sê 56, huá-hŏk hù-hô̤ sê Ba.
==Huá-hŏk séng-cék==
第6行 ⟶ 第107行：
==Cié-chṳ̄==
==Chăng-kō̤ cṳ̆-lâiu==
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{{Ciŭ-gĭ-biēu}}
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