text: # Technetium
  Chăng-kō̤ Mìng-dĕ̤ng-ngṳ̄ Háng-cê gì bēng-buōng. / 參考閩東語漢字其版本。
  Technetium sê siŏh cṳ̄ng gĭng-sṳ̆k, iâ sê siŏh cṳ̄ng huá-hŏk nguòng-só.  Nguòng-cṳ̄ sê̤ṳ-só sê 43, huá-hŏk hù-hô̤ sê Tc.
title: Technetium
wikitext: {{twinLAT|鍀}}
  {{infobox element
  |name=Tecneti
  |enname=technetium
  |laname=technetium
  |number=43
  |symbol=Tc
  |left=[[Mŭk (gĭng-sṳ̆k)|Molypden]]
  |right=[[ruthenium|Rutheni]]
  |above=[[Mâing (gĭng-sṳ̆k)|Mangan]]
  |below=[[rhenium|Rheni]]
  |series=guó-dô gĭng-sṳ̆k
  |series comment=
  |group=7
  |period=5
  |block=d
  |series color=
  |appearance=shiny gray metal
  |image name=
  |image alt=
  |image size=
  |image name comment=
  |image name 2=
  |image name 2 comment=
  |atomic mass=[98]
  |atomic mass 2=
  |atomic mass comment=
  |electron configuration=&#91;[[Krypton|Kr]]&#93; 4d<sup>5</sup> 5s<sup>2</sup>
  |electrons per shell=2, 8, 18, 13, 2
  |color=
  |phase=gó-tā̤
  |phase comment=
  |density gplstp=
  |density gpcm3nrt=11
  |density gpcm3mp=
  |melting point K=2430
  |melting point C=2157
  |melting point F=3915
  |boiling point K=4538
  |boiling point C=4265
  |boiling point F=7709
  |triple point K=
  |triple point kPa=
  |critical point K=
  |critical point MPa=
  |heat fusion=33.29
  |heat vaporization=585.2
  |heat capacity=24.27
  |vapor pressure 1=2727
  |vapor pressure 10=2998
  |vapor pressure 100=3324
  |vapor pressure 1 k=3726
  |vapor pressure 10 k=4234
  |vapor pressure 100 k=4894
  |vapor pressure comment=''(extrapolated)''
  |crystal structure=hexagonal close packed
  |oxidation states='''7''', 6, 5, '''4''', 3,<ref name="OpenMOPAC">{{cite web|url=http://openmopac.net/data_normal/technetium(iii)%20triiodide_jmol.html|title=Technetium: technetium(III) iodide compound data|accessdate=2007-12-10|publisher=OpenMOPAC.net|archive-date=2008-03-06|archive-url=https://web.archive.org/web/20080306031601/http://openmopac.net/data_normal/technetium(iii)%20triiodide_jmol.html|deadurl=yes}}</ref> 2, 1,<ref name="OpenMOPAC"/> −1, −3
  |oxidation states comment=(a&nbsp;strongly [[acid]]ic oxide)
  |electronegativity=1.9
  |number of ionization energies=3
  |ionization energy 1=702
  |ionization energy 2=1470
  |ionization energy 3=2850
  |atomic radius=136
  |atomic radius calculated=
  |covalent radius=147±7
  |Van der Waals radius=
  |magnetic ordering=[[Paramagnetic]]
  |electrical resistivity unit prefix=n
  |electrical resistivity at 0=
  |electrical resistivity at 20=200
  |thermal conductivity=50.6
  |thermal conductivity 2=
  |thermal diffusivity=
  |thermal expansion=7.1
  |thermal expansion ref=<ref>http://www.owlnet.rice.edu/~msci301/ThermalExpansion.pdf</ref>
  |thermal expansion comment=(at&nbsp;{{abbr|r.t.|room temperature}})
  |speed of sound=
  |speed of sound rod at 20=16,200
  |speed of sound rod at r.t.=
  |Young's modulus=
  |Shear modulus=
  |Bulk modulus=
  |Poisson ratio=
  |Mohs hardness=
  |Vickers hardness=
  |Brinell hardness=
  |CAS number=7440-26-8
  |isotopes=
  {{infobox element/isotopes decay3 | mn=95m | sym=Tc
   | na=[[synthetic radioisotope|syn]] | hl=[[1 E6 s|61&nbsp;d]]
   | dm1=[[electron capture|ε]] | de1=– | link1=molybdenum-95 | pn1=95 | ps1=Mo
   | dm2=[[gamma radiation|γ]] | de2=0.204, 0.582,<br/>0.835 | pn2= | ps2=–
   | dm3=[[internal conversion|IT]] | de3=0.0389, [[conversion electron|e]] | pn3=95 | ps3=Tc }}
  {{infobox element/isotopes decay2 | mn=96 | sym=Tc
   | na=syn | hl=[[1 E5 s|4.3&nbsp;d]]
   | dm1=ε | de1=– | link1=molybdenum-96 | pn1=96 | ps1=Mo
   | dm2=γ | de2=0.778, 0.849,<br/>0.812 | pn2= | ps2=– }}
  {{infobox element/isotopes decay | mn=97 | sym=Tc
   | na=syn | hl=[[1 E13 s|2.6×10<sup>6</sup>&nbsp;y]]
   | dm=ε | de=– | | link1=molybdenum-97 | pn=97 | ps=Mo }}
  {{infobox element/isotopes decay | mn=97m | sym=Tc
   | na=syn | hl=[[1 E6 s|91&nbsp;d]]
   | dm=IT | de=0.965, e | pn=97 | ps=Tc }}
  {{infobox element/isotopes decay2 | mn=98 | sym=Tc
   | na=syn | hl=[[1 E14 s|4.2×10<sup>6</sup>&nbsp;y]]
   | dm1=[[beta emission|β<sup>−</sup>]] | de1=0.4 | link1=ruthenium-98 | pn1=98 | ps1=Ru
   | dm2=γ | de2=0.745, 0.652 | pn2= | ps2=– }}
  {{infobox element/isotopes decay | mn=99 | sym=Tc
   | na=[[trace radioisotope|trace]] | hl=[[1 E12 s|2.111×10<sup>5</sup>&nbsp;y]]
   | dm=β<sup>−</sup> | de=0.294 | link1=ruthenium-99 | pn=99 | ps=Ru }}
  {{infobox element/isotopes decay2 | mn=99[[nuclear isomer|m]] | sym=Tc
   | na=syn | hl=[[1 E4 s|6.01&nbsp;h]]
   | dm1=IT | de1=0.142, 0.002 | pn1=99 | ps1=Tc
   | dm2=γ | de2=0.140 | pn2= | ps2=– }}
  |predicted by=[[Dmitri Mendeleev]]
  |prediction date=1871
  |discovery and first isolation by=[[Emilio Segrè]] and [[Carlo Perrier]]  
  |discovery date=1937
  }}
  '''Technetium''' sê siŏh cṳ̄ng [[gĭng-sṳ̆k]], iâ sê siŏh cṳ̄ng [[huá-hŏk nguòng-só]].  [[Nguòng-cṳ̄ sê̤ṳ-só]] sê 43, huá-hŏk hù-hô̤ sê Tc.
  ==Huá-hŏk séng-cék==
  
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  ==Cié-chṳ̄==
  
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  [[分類:Huá-hŏk nguòng-só]]