「Strontium」調整以後𣍐蜀樣其地方
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Sĭng hiĕk: thumb|right|200px|Strontium '''Strontium''' sê siŏh cṳ̄ng gĭng-sṳ̆k, iâ sê siŏh cṳ̄ng huá-hŏk nguòng-só. Nguò... |
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Dâ̤ 1 hòng:
{{Infobox element
|number=38
|symbol=Sr
|name=Stronti
|enname=strontium
|laname=strontium
|left=[[rubidium|Rubidi]]
|right=[[yttrium|Yttri]]
|above=[[Gái (gĭng-sṳ̆k)|Calci]]
|below=[[barium|Bari]]
|series=giĕng-tū gĭng-sṳ̆k
|group=2
|period=5
|block=s
|image name=Strontium_destilled_crystals.jpg
|appearance=silvery white metallic; with a pale yellow tint<ref>{{Greenwood&Earnshaw|page=112}}</ref>
|atomic mass=87.62
|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=1
|atomic mass comment=
|electron configuration=[[[krypton|Kr]]] 5s<sup>2</sup>
|electrons per shell=2, 8, 18, 8, 2
|phase=gó-tā̤
|density gpcm3nrt=2.64
|density gpcm3mp=2.375
|melting point K=1050
|melting point C=777
|melting point F=1431
|boiling point K=1650
|boiling point C=1377
|boiling point F=2511
|heat fusion=7.43
|heat vaporization=141
|heat capacity=26.4
|vapor pressure 1=796
|vapor pressure 10=882
|vapor pressure 100=990
|vapor pressure 1 k=1139
|vapor pressure 10 k=1345
|vapor pressure 100 k=1646
|vapor pressure comment=
|crystal structure=face-centered cubic
|oxidation states='''2''', 1
|oxidation states ref=<ref>{{cite journal|url=http://bernath.uwaterloo.ca/media/149.pdf|title=High-Resolution Infrared Emission Spectrum of Strontium Monofluoride|journal=J. Molecular Spectroscopy| volume=175|page=158|year=1996|doi=10.1006/jmsp.1996.0019|bibcode=1996JMoSp.175..158C|last1=Colarusso|first1=P.|last2=Guo|first2=B.|last3=Zhang|first3=K.-Q.|last4=Bernath|first4=P.F. }}</ref>
|oxidation states comment=(a strongly [[base (chemistry)|basic]] oxide)
|electronegativity=0.95
|number of ionization energies=3
|ionization energy 1=549.5
|ionization energy 2=1064.2
|ionization energy 3=4138
|atomic radius=215
|covalent radius=195±10
|Van der Waals radius=249
|magnetic ordering=[[paramagnetism|paramagnetic]]
|electrical resistivity unit prefix=n
|electrical resistivity at 20=132
|thermal conductivity=35.4
|thermal expansion at 25=22.5
|Young's modulus=15.7
|Shear modulus=6.03
|Poisson ratio=0.28
|Mohs hardness=1.5
|CAS number=7440-24-6
|isotopes=
{{infobox element/isotopes decay | mn=82 | sym=Sr
| na=[[synthetic radioisotope|syn]] | hl=25.36 d
| dm=[[electron capture|ε]] | de=– | link1=rubidium-82 | pn=82 | ps=Rb}}
{{infobox element/isotopes decay3 | mn=83 | sym=Sr
| na=syn | hl=1.35 d
| dm1=ε | de1=– | link1=rubidium-83 | pn1=83 | ps1=Rb
| dm2=[[positron emission|β<sup>+</sup>]] | de2=1.23 | pn2=83 | ps2=Rb
| dm3=[[gamma radiation|γ]] | de3=0.76, 0.36 | pn3= | ps3=–}}
{{infobox element/isotopes decay | mn=84 | sym=Sr
| na=0.56% | hl=–
| dm=([[double beta decay|β<sup>+</sup>β<sup>+</sup>]]) | de=1.7867 | link1=krypton-84 | pn=84 | ps=Kr }}
{{infobox element/isotopes decay2 | mn=85 | sym=Sr
| na=syn | hl=64.84 d
| dm1=ε | de1=– | link1=rubidium-85 | pn1=85 | ps1=Rb
| dm2=γ | de2=0.514[[delayed nuclear radiation|D]] | pn2= | ps2=–}}
{{Infobox element/isotopes stable | mn=86 | sym=Sr | na=9.86% | n=48 |firstlinks=yes}}
{{Infobox element/isotopes stable | mn=87 | sym=Sr | na=7.0% | n=49 |firstlinks=no}}
{{Infobox element/isotopes stable | mn=88 | sym=Sr | na=82.58% | n=50 |firstlinks=no}}
{{infobox element/isotopes decay2 | mn=89 | sym=Sr
| na=syn | hl=50.52 d
| dm1=ε | de1=1.49 | link1=rubidium-89 | pn1=89 | ps1=Rb
| dm2=[[beta decay|β<sup>−</sup>]] | de2=0.909D | link2=yttrium-89 | pn2=89 | ps2=Y}}
{{infobox element/isotopes decay | mn=90 | sym=Sr
| na=[[trace radioisotope|trace]] | hl=28.90 y
| dm=β<sup>−</sup> | de=0.546 | link1=yttrium-90 | pn=90 | ps=Y}}
|isotopes comment=Decay modes in parentheses are predicted, but have not yet been observed
|naming=after the mineral [[strontianite]], itself named after [[Strontian]], Scotland
|discovered by=[[William Cruickshank (chemist)|William Cruickshank]]
|discovery date=1787
|first isolation by=[[Humphry Davy]]
|first isolation date=1808
}}
'''Strontium''' sê siŏh cṳ̄ng [[gĭng-sṳ̆k]], iâ sê siŏh cṳ̄ng [[huá-hŏk nguòng-só]]. [[Nguòng-cṳ̄ sê̤ṳ-só]] sê 38, huá-hŏk hù-hô̤ sê Sr.
==Huá-hŏk séng-cék==
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==Cié-chṳ̄==
==Chăng-kō̤ cṳ̆-lâiu==
{{reflist}}
{{Ciŭ-gĭ-biēu}}
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