text: # Americium
  Chăng-kō̤ Mìng-dĕ̤ng-ngṳ̄ Háng-cê gì bēng-buōng. / 參考閩東語漢字其版本。
  Americium sê siŏh cṳ̄ng gĭng-sṳ̆k, iâ sê siŏh cṳ̄ng huá-hŏk nguòng-só.  Nguòng-cṳ̄ sê̤ṳ-só sê 95, huá-hŏk hù-hô̤ sê Am.
  
title: Americium
wikitext: {{twinLAT|鎇}}
  {{Infobox element
  |name=Americi
  |laname=americium
  |number=95
  |symbol=Am
  |left=[[plutonium|Plutoni]]
  |right=[[curium|Curi]]
  |above=[[Europium|Europi]]
  |below=(Uqs)
  |series=actinium-hiê
  |series comment=
  |group=n/a
  |period=7
  |block=f
  |series color=
  |appearance=silvery white
  |image name=americium microscope.jpg
  |image name comment=
  |image name 2=Americium spectrum visible.png
  |image name 2 comment=[[Spectral lines]] of americium
  |atomic mass=(243)
  |atomic mass 2=
  |atomic mass comment=
  |electron configuration=&#91;[[radon|Rn]]&#93; 5f<sup>7</sup> 7s<sup>2</sup>
  |electrons per shell=2, 8, 18, 32, 25, 8, 2
  |color=
  |phase=gó-tā̤
  |phase comment=
  |density gplstp=
  |density gpcm3nrt=12
  |density gpcm3mp=
  |melting point K=1449
  |melting point C=1176
  |melting point F=2149
  |boiling point K=2880
  |boiling point comment=''(calculated)''
  |boiling point C=2607
  |boiling point F=4725
  |triple point K=
  |triple point kPa=
  |critical point K=
  |critical point MPa=
  |heat fusion=14.39
  |heat vaporization=
  |heat capacity=62.7
  |vapor pressure 1=1239
  |vapor pressure 10=1356
  |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=8, 7, 6, 5, 4, '''3''', 2
  |oxidation states comment=(an [[amphoterism|amphoteric]] oxide)
  |electronegativity=1.3
  |number of ionization energies=1
  |ionization energy 1=578
  |atomic radius=173
  |covalent radius=180±6
  |Van der Waals radius=
  |magnetic ordering=paramagnetic
  |electrical resistivity=0.69
  |electrical resistivity ref=<ref name=res>{{cite journal|last1=Muller|first1=W.|last2=Schenkel|first2=R.|last3=Schmidt|first3=H. E.|last4=Spirlet|first4=J. C.|last5=McElroy|first5=D. L.|last6=Hall|first6=R. O. A.|last7=Mortimer|first7=M. J.|title=The electrical resistivity and specific heat of americium metal|journal=Journal of Low Temperature Physics|volume=30|pages=561|year=1978|doi=10.1007/BF00116197|issue=5–6|bibcode=1978JLTP...30..561M }}</ref>
  |electrical resistivity unit prefix=µ
  |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=7440-35-9
  |isotopes=
  {{infobox element/isotopes decay2 | mn=241 | sym=Am
   | na=[[synthetic radioisotope|syn]] | hl=[[1 E10 s|432.2&nbsp;y]]
   | dm1=[[spontaneous fission|SF]] | de1=– | pn1= | ps1=–
   | dm2=[[alpha decay|α]] | de2=5.486 | link2=neptunium-237 | pn2=237 | ps2=Np }}
  {{infobox element/isotopes decay3| mn=242[[nuclear isomer|m1]] | sym=Am
   | na=syn | hl=141&nbsp;y
   | dm1=[[Isomeric transition|IT]] | de1=0.049 | pn1=242 | ps1=Am
   | dm2=α | de2=5.637 | link2=neptunium-238 | pn2=238 | ps2=Np
   | dm3=SF | de3=– | pn3= | ps3=– }}
  {{infobox element/isotopes decay2 | mn=243 | sym=Am
   | na=syn | hl=[[1 E11 s|7370&nbsp;y]]
   | dm1=SF | de1=– | pn1= | ps1=–
   | dm2=α | de2=5.275 | link2=neptunium-239 | pn2=239 | ps2=Np }}
  |isotopes comment=
  |naming=after the [[Americas]]
  |discovered by=[[Glenn T. Seaborg]], [[Ralph A. James]], [[Leon O. Morgan]], [[Albert Ghiorso]]
  |discovery date=1944
  }}
  '''Americium''' sê siŏh cṳ̄ng [[gĭng-sṳ̆k]], iâ sê siŏh cṳ̄ng [[huá-hŏk nguòng-só]].  [[Nguòng-cṳ̄ sê̤ṳ-só]] sê 95, huá-hŏk hù-hô̤ sê Am.
  ==Huá-hŏk séng-cék==
  
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  [[分類:Huá-hŏk nguòng-só]]