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{{infobox element
|name=plutonium
|number=94
|symbol=Pu
|abundance=
|abundance in earth's crust=
|abundance in oceans=
|abundance in solar system=
|left=[[neptunium]]
|right=[[americium]]
|above=[[samarium|Sm]]
|below=(Uqo)
|category comment=
|group=n/a
|period=7
|block=f
|appearance=silvery white, tarnishing to dark gray in air
|image name=Plutonium3.jpg
|electrons per shell=2, 8, 18, 32, 24, 8, 2
|phase=
|phase comment=
|density gplstp=
|density gpcm3nrt=19.85 (239Pu)<ref>Calculated from the atomic weight and the atomic volume. The unit cell, containing 16 atoms, has a volume of 319.96 cubic Å, according to {{cite journal
|author = Siegfried S. Hecker
|title = Plutonium and its alloys: from atoms to microstructure
|journal = Los Alamos Science
|volume = 26
|date = 2000
|page=331
|url = https://fas.org/sgp/othergov/doe/lanl/pubs/00818035.pdf}}. This gives a density for 239Pu of (1.66053906660×10−24g/dalton×239.0521634 daltons/atom×16 atoms/unit cell)/(319.96 Å3/unit cell × 10−24cc/Å3) or 19.85 g/cc.</ref>
|density gpcm3nrt 2=
|density gpcm3mp=16.63
|melting point K=912.5
|melting point C=639.4
|melting point F=1182.9
|sublimation point K=
|sublimation point C=
|sublimation point F=
|boiling point K=3505
|boiling point C=3228
|boiling point F=5842
|triple point K=
|triple point kPa=
|critical point K=
|critical point MPa=
|heat fusion=2.82
|heat fusion 2=
|heat vaporization=333.5
|heat capacity=35.5
|vapor pressure 1=1756
|vapor pressure 10=1953
|vapor pressure 100=2198
|vapor pressure 1 k=2511
|vapor pressure 10 k=2926
|vapor pressure 100 k=3499
|vapor pressure comment=
|crystal structure=monoclinic
|electronegativity=1.28
|number of ionization energies=1
|ionization energy 1=584.7
|ionization energy 2=
|ionization energy 3=
|atomic radius=159
|atomic radius calculated=
|covalent radius=187±1
|Van der Waals radius=
|magnetic ordering=[[paramagnetic]]
|magnetic ordering ref=
|electrical resistivity=
|electrical resistivity unit prefix=µ
|electrical resistivity at 0=1.460
|electrical resistivity at 20=
|thermal conductivity=6.74
|thermal conductivity 2=
|thermal diffusivity=
|thermal expansion=
|thermal expansion at 25=46.7
|speed of sound=2260
|speed of sound rod at 20=
|speed of sound rod at r.t.=
|magnetic susceptibility=
|magnetic susceptibility ref=
|tensile strength=
|Young's modulus=96
|Shear modulus=43
|Bulk modulus=
|Poisson ratio=0.21
|Mohs hardness=
|Vickers hardness=
|Brinell hardness=
|CAS number=7440-07-5
|isotopes=
{{infobox element/isotopes decay2 | link=Plutonium-238 | mn=238 | sym=Pu
|na=[[trace radioisotope|trace]] | hl=87.74 y
|dm1=[[spontaneous fission|SF]] | de1=204.66{{sfn|Magurno|Pearlstein|1981|pp=835 ff}}
|pn1= | ps1=–
|dm2=[[alpha emission|α]] | de2=5.5 | link2=uranium-234 | pn2=234 | ps2=U}}
{{infobox element/isotopes decay2 | link=Plutonium-239 | mn=239 | sym=Pu
|na=trace | hl=2.41×104 y
|dm1=SF | de1=207.06 | pn1= | ps1=–
|dm2=α | de2=5.157 | link2=uranium-235 | pn2=235 | ps2=U}}
{{infobox element/isotopes decay2 | link=Plutonium-240 | mn=240 | sym=Pu
|na=trace | hl=6500 y
|dm1=SF | de1=205.66 | pn1= | ps1=–
|dm2=α | de2=5.256 | link2=uranium-236 | pn2=236 | ps2=U}}
{{infobox element/isotopes decay2 | link=plutonium-241 | mn=241 | sym=Pu
|na=[[synthetic radioisotope|syn]] | hl=14 y
|dm1=[[beta emission|β−]] | de1=0.02078 | link1=americium-241 | pn1=241 | ps1=Am
|dm2=SF | de2=210.83 | pn2= | ps2=–
|dm3=[[beta emission|β]] | de3=– | link3=americium-241 | pn3=241 | ps3=Am}}
{{infobox element/isotopes decay2 | link=Plutonium-242 | mn=242 | sym=Pu
|na=syn | hl=3.73×105 y
|dm1=SF | de1=209.47 | pn1= | ps1=–
|dm2=α | de2=4.984 | link2=uranium-238 | pn2=238 | ps2=U}}
{{infobox element/isotopes decay2 | link=Plutonium-244 | mn=244 | sym=Pu
|na=trace | hl=8.08×107 y
|dm1=α | de1=4.666 | link1=uranium-240 | pn1=240 | ps1=U
|dm2=SF | de2= | pn2= | ps2=– }}
|isotopes comment=
|naming=after [[dwarf planet]] [[Pluto]], itself named after [[classical mythology|classical]] god of the underworld [[Pluto (mythology)|Pluto]]
|discovered by=[[Glenn T. Seaborg]], [[Arthur Wahl]], [[Joseph W. Kennedy]], [[Edwin McMillan]]
|discovery date=1940–1941
|QID=Q1102
}}<noinclude>
{{Infobox element/element navigation|symbol=Pu}}
{{Template reference list}}
{{documentation|1=Template:Infobox element/doc}}
</noinclude>

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