text: # Berkelium
  Chăng-kō̤ Mìng-dĕ̤ng-ngṳ̄ Háng-cê gì bēng-buōng. / 參考閩東語漢字其版本。
  Berkelium sê siŏh cṳ̄ng gĭng-sṳ̆k, iâ sê siŏh cṳ̄ng huá-hŏk nguòng-só.  Nguòng-cṳ̄ sê̤ṳ-só sê 97, huá-hŏk hù-hô̤ sê Bk.
title: Berkelium
wikitext: {{twinLAT|錇}}
  {{infobox element
  |name=Berkeli
  |laname=berkelium
  |number=97
  |symbol=Bk
  |left=[[curium|Curi]]
  |right=[[californium|Californi]]
  |above=[[Terbium|Terbi]]
  |below=(Uqe)
  |series=actinium-hiê
  |series comment=
  |group=n/a
  |period=7
  |block=f
  |series color=
  |appearance=silvery
  |image name=Berkelium metal.jpg
  |image name comment=
  |image name 2=
  |image name 2 comment=
  |atomic mass=(247)
  |atomic mass 2=
  |atomic mass comment=
  |electron configuration=&#91;[[radon|Rn]]&#93; 5f<sup>9</sup> 7s<sup>2</sup>
  |electrons per shell=2, 8, 18, 32, 27, 8, 2
  |color=
  |phase=gó-tā̤
  |phase comment=
  |density gplstp=
  |density gpcm3nrt=alpha: 14.78
  |density gpcm3nrt 2=beta: 13.25
  |density gpcm3mp=
  |melting point K=beta:&nbsp;1259
  |melting point C=986
  |melting point F=1807
  |melting point comment=
  |boiling point K=beta:&nbsp;2900
  |boiling point C=2627
  |boiling point F=4760
  |boiling point comment=
  |triple point K=
  |triple point kPa=
  |critical point K=
  |critical point MPa=
  |heat fusion=7.92
  |heat fusion comment=(calculated)
  |heat vaporization=
  |heat capacity=
  |vapor pressure 1=
  |vapor pressure 10=
  |vapor pressure 100=
  |vapor pressure 1 k=
  |vapor pressure 10 k=
  |vapor pressure 100 k=
  |vapor pressure comment=
  |crystal structure=double hexagonal close packed
  |oxidation states=2, '''3''', 4
  |oxidation states comment=
  |electronegativity=1.3
  |number of ionization energies=1
  |ionization energy 1=601
  |atomic radius=170
  |covalent radius=
  |Van der Waals radius=
  |magnetic ordering=[[paramagnetic]]
  |electrical resistivity=
  |electrical resistivity at 0=
  |electrical resistivity at 20=
  |thermal conductivity=10
  |thermal conductivity 2=
  |thermal diffusivity=
  |thermal expansion=
  |thermal expansion at 25=
  |speed of sound=
  |speed of sound rod at 20=
  |speed of sound rod at r.t.=
  |Young's modulus=
  |Shear modulus=
  |Bulk modulus=
  |Poisson ratio=
  |Mohs hardness=
  |Vickers hardness=
  |Brinell hardness=
  |CAS number=7440-40-6
  |isotopes=
  {{infobox element/isotopes decay2 | mn=245 | sym=Bk
   | na=[[synthetic radioisotope|syn]] | hl=[[1 E5 s|4.94&nbsp;d]]
   | dm1=[[electron capture|ε]] | de1=0.810 | link1=curium-245 | pn1=245 | ps1=Cm
   | dm2=[[alpha emission|α]] | de2=6.455 | link2=americium-241 | pn2=241 | ps2=Am}}
  {{infobox element/isotopes decay2 | mn=246 | sym=Bk
   | na=syn | hl=1.8&nbsp;d
   | dm1=α | de1=6.070 | link1=americium-242 | pn1=242 | ps1=Am
   | dm2=ε | de2=1.350 | link2=curium-246 | pn2=246 | ps2=Cm}}
  {{infobox element/isotopes decay | mn=247 | sym=Bk
   | na=syn | hl=[[1 E10 s|1380&nbsp;y]]
   | dm=α | de=5.889 | link1=americium-243 | pn=243 | ps=Am}}
  {{infobox element/isotopes decay | mn=248 | sym=Bk
   | na=syn | hl=[[1 E9 s|>300&nbsp;y]]<ref>{{Cite journal | last1 = Milsted | first1 = J. | last2 = Friedman | first2 = A. M. | last3 = Stevens | first3 = C. M. | doi = 10.1016/0029-5582(65)90719-4 | title = The alpha half-life of berkelium-247; a new long-lived isomer of berkelium-248 | journal = Nuclear Physics | volume = 71 | issue = 2 | pages = 299 | year = 1965 | pmid =  | pmc = }}</ref>
   | dm=α | de=5.803 | link1=americium-244 | pn=244 | ps=Am}}
  {{infobox element/isotopes decay3| mn=249 | sym=Bk
   | na=syn | hl=[[1 E7 s|330&nbsp;d]]
   | dm1=α | de1=5.526 | link1=americium-245 | pn1=245 | ps1=Am
   | dm2=[[spontaneous fission|SF]] | de2=– | pn2= | ps2=–
   | dm3=[[beta emission|β<sup>−</sup>]] | de3=0.125 | link3=californium-249 | pn3=249 | ps3=Cf}}
  |isotopes comment=
  |naming=after [[Berkeley, California]], where it was discovered
  |discovered by=[[Lawrence Berkeley National Laboratory]]
  |discovery date=1949
  }}
  '''Berkelium''' sê siŏh cṳ̄ng [[gĭng-sṳ̆k]], iâ sê siŏh cṳ̄ng [[huá-hŏk nguòng-só]].  [[Nguòng-cṳ̄ sê̤ṳ-só]] sê 97, huá-hŏk hù-hô̤ sê Bk.
  ==Huá-hŏk séng-cék==
  
  ==Éng-ê̤ṳng==
  
  ==Cié-chṳ̄==
  
  ==Chăng-kō̤ cṳ̆-lâiu==
  {{reflist}}
  
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  [[分類:Huá-hŏk nguòng-só]]