Xem mã nguồn của Bản mẫu:Hộp thông tin bari

{{Thông tin nguyên tố hóa học
|name=Bari
|number=56
|symbol=Ba
|left=[[Caesi]]
|right=[[Lanthan]]
|above=[[Stronti|Sr]]
|below=[[Radi|Ra]]
|series=Kim loại kiềm thổ
|series comment=
|group=2
|period=6
|block=s
|series color=
|phase color=
|appearance=Màu bạc xám; bóng màu vàng nhạt<ref>{{Greenwood&Earnshaw2nd|page=112}}</ref>
|image name=Barium unter Argon Schutzgas Atmosphäre.jpg
|image alt=
|image size=
|image name comment=
|image name 2=Barium spectrum visible.png
|image name 2 comment=[[Quang phổ vạch]] của bari
|atomic mass=137,327
|atomic mass 2=7
|atomic mass ref=<ref>{{Chú thích tạp chí|last1=Meija|first1=Juris|last2=Coplen|first2=Tyler B.|last3=Berglund|first3=Michael|last4=Brand|first4=Willi A.|last5=De Bièvre|first5=Paul|last6=Gröning|first6=Manfred|last7=Holden|first7=Norman E.|last8=Irrgeher|first8=Johanna|last9=Loss|first9=Robert D.|last10=Walczyk|first10=Thomas|last11=Prohaska|first11=Thomas|display-authors=1|year=2016|title=Atomic weights of the elements 2013 (IUPAC Technical Report)|journal=Pure and Applied Chemistry|volume=88|issue=3|pages=265–291|doi=10.1515/pac-2015-0305}}</ref>
|atomic mass comment=
|electron configuration=&#91;[[Xenon|Xe]]&#93; 6s<sup>2</sup>
|electrons per shell=2, 8, 18, 18, 8, 2
|color=Bạc xám
|phase=Chất rắn
|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=Lập phương tâm khối|oxidation states={{resize|1=112%|2='''2'''}}, 1
|oxidation states comment=[[Base]] mạnh
|electronegativity=0,89
|number of ionization energies=3
|1st ionization energy=502,9
|2nd ionization energy=965,2
|3rd ionization energy=3600
|atomic radius=222
|covalent radius=215±11
|Van der Waals radius=268
|electrical resistivity=
|electrical resistivity at 0=
|electrical resistivity at 20=332
|electrical resistivity unit prefix=n
|magnetic ordering=[[Thuận từ]]
|magnetic ordering ref=<ref>{{chú thích sách | url = http://www-d0.fnal.gov/hardware/cal/lvps_info/engineering/elementmagn.pdf | chapter = Magnetic susceptibility of the elements and inorganic compounds | editor = Lide, D. R. | title = CRC Handbook of Chemistry and Physics | edition = 86th | location = Boca Raton (FL) | publisher = CRC Press | year = 2005 | isbn = 0-8493-0486-5 | access-date = 2021-06-14 | archive-date = 2011-03-03 | archive-url = https://web.archive.org/web/20110303222309/http://www-d0.fnal.gov/hardware/cal/lvps_info/engineering/elementmagn.pdf }}</ref>
|magnetic susceptibility={{val|+20,6|e=−6}}
|magnetic susceptibility ref=<ref>{{chú thích sách|title=CRC, Handbook of Chemistry and Physics|last=Weast|first=Robert|publisher=Chemical Rubber Company Publishing|year=1984|isbn=0-8493-0464-4|location=Boca Raton, Florida|pages=E110}}</ref>
|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
|Mohs hardness=1,25
|Vickers hardness=
|Brinell hardness=
|CAS number=7440-39-3
|discovered by=[[Carl Wilhelm Scheele]]
|discovery date=1772
|first isolation by=[[Humphry Davy]]
|first isolation date=1808
|isotopes=
{{Elementbox_isotopes_decay | mn=130 | sym=Ba | 
 | na=0.11% | hl=(0,5–2,7)×10<sup>21</sup> [[năm]]
 | dm=[[Bắt giữ electron kép|εε]] | de=2,620 | pn=130 | ps=[[Xenon|Xe]] }}
{{Elementbox_isotopes_stable | mn=132 | sym=Ba | na=0.10% | n=76 }}<ref>Được cho là trải qua phân rã [[Phân rã beta kép|β<sup>+</sup>β<sup>+</sup>]] thành '''<sup>132</sup>Xe''' với [[chu kỳ bán rã]] hơn 3×10<sup>20</sup> [[năm]].</ref>
{{Elementbox_isotopes_decay | mn=133 | sym=Ba
 | na=[[Đồng vị phóng xạ tổng hợp|Tổng hợp]] | hl=10,51&nbsp;[[năm]]
 | dm=[[Bắt giữ electron|ε]] | de=0,517 | pn=133 | ps=[[Caesi|Cs]] }}
{{Elementbox_isotopes_stable | mn=134 | sym=Ba | na=2.42% | n=78 }}<ref name=n>Về mặt lý thuyết có khả năng [[phân hạch tự phát]].</ref>
{{Elementbox_isotopes_stable | mn=135 | sym=Ba | na=6.59% | n=79 }}<ref name=n />
{{Elementbox_isotopes_stable | mn=136 | sym=Ba | na=7.85% | n=80 }}<ref name=n />
{{Elementbox_isotopes_stable | mn=137 | sym=Ba | na=11.23% | n=81 }}<ref name=n />
{{Elementbox_isotopes_stable | mn=138 | sym=Ba | na=71.70% | n=82 }}<ref name=n />
}}{{danh sách tham khảo ẩn}}
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