Plutonium, 00 Pu Pronunciation (ploo -TOH-nee -əm ) Allotropes see Allotropes of plutonium Appearance silvery white, tarnishing to dark gray in air Mass number [244]
Group మూస:Infobox element/symbol-to-group/format Period period 7 Block f-block Electron configuration [Rn ] 5f6 7s2 Electrons per shell 2, 8, 18, 32, 24, 8, 2 Phase at STP solid Melting point 912.5 K (639.4 °C, 1182.9 °F) Boiling point 3505 K (3228 °C, 5842 °F) Density (near r.t. ) 19.816 g/cm3 when liquid (at m.p. ) 16.63 g/cm3 Heat of fusion 2.82 kJ/mol Heat of vaporization 333.5 kJ/mol Molar heat capacity 35.5 J/(mol·K) Vapor pressure
P (Pa)
1
10
100
1 k
10 k
100 k
at T (K)
1756
1953
2198
2511
2926
3499
Oxidation state s+2, +3, +4 , +5, +6, +7, +8 (an amphoteric oxide) Electronegativity Pauling scale: 1.28 Ionization energies Atomic radius empirical: 159 pm Covalent radius 187±1 pm Spectral line s of plutoniumNatural occurrence from decay Crystal structure monoclinic Speed of sound 2260 m/s Thermal expansion 46.7 µm/(m⋅K) (at 25 °C) Thermal conductivity 6.74 W/(m⋅K) Electrical resistivity 1.460 µΩ⋅m (at 0 °C) Magnetic ordering paramagnetic [ 1] Young's modulus 96 GPa Shear modulus 43 GPa Poisson ratio 0.21 CAS Number 7440-07-5 Naming after dwarf planet Pluto , itself named after classical god of the underworld Pluto Discovery Glenn T. Seaborg , Arthur Wahl , Joseph W. Kennedy , Edwin McMillan (1940–1) Template:infobox plutonium isotopes does not exist Category: Plutonium | references
References
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Infoboxes for the chemical element s use the core template {{ Infobox element }} .
In general
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that allows for references. This reference is added right after the unit.
ionization energy ref
Parameters with a .. comment
suffix are added to the end of a data line, with a space added. Comments are reproduced without formatting additions (no brackets, no italics, ...):
ionization energy comment
Numbered values make a list:
ionization energy
ionization energy 2
ionization energy 3
See also: Infobox element/testcases-all-params demo .
{{Infobox element
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|symbol=
|number=
<!-- image -->
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<!-- Periodic table -->
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|sublimation point K=
|sublimation point C=
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|density gplstp=
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|density kgpm3stp=
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|density gpcm3nrt=
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|density gpcm3nrt 2=
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|density gpcm3nrt 3=
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|density gpcm3mp=
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|density gpcm3bp=
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|molar volume=
|molar volume unit =
|molar volume ref=
|molar volume comment=
|triple point K=
|triple point kPa=
|triple point ref=
|triple point comment=
|triple point K 2=
|triple point kPa 2=
|triple point 2 ref=
|triple point 2 comment=
|critical point K=
|critical point MPa=
|critical point ref=
|critical point comment=
|heat fusion=
|heat fusion ref=
|heat fusion comment=
|heat fusion 2=
|heat fusion 2 ref=
|heat fusion 2 comment=
|heat vaporization=
|heat vaporization ref=
|heat vaporization comment=
|heat capacity=
|heat capacity ref=
|heat capacity comment=
|heat capacity 2=
|heat capacity 2 ref=
|heat capacity 2 comment=
|vapor pressure 1=
|vapor pressure 10=
|vapor pressure 100=
|vapor pressure 1 k=
|vapor pressure 10 k=
|vapor pressure 100 k=
|vapor pressure ref=
|vapor pressure comment=
|vapor pressure 1 2=
|vapor pressure 10 2=
|vapor pressure 100 2=
|vapor pressure 1 k 2=
|vapor pressure 10 k 2=
|vapor pressure 100 k 2=
|vapor pressure 2 ref=
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<!-- Atomic properties -->
|atomic properties comment=
|electronegativity=
|electronegativity ref=
|electronegativity comment=
|ionization energy 1=
|ionization energy 1 ref=
|ionization energy 1 comment=
|ionization energy 2=
|ionization energy 2 ref=
|ionization energy 2 comment=
|ionization energy 3=
|ionization energy 3 ref=
|ionization energy 3 comment=
|number of ionization energies=
|ionization energy ref=
|ionization energy comment=
|atomic radius=
|atomic radius ref=
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|atomic radius calculated=
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|covalent radius=
|covalent radius ref=
|covalent radius comment=
|Van der Waals radius=
|Van der Waals radius ref=
|Van der Waals radius comment=
<!-- Miscellanea -->
|crystal structure=
|crystal structure prefix=
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|crystal structure comment=
|crystal structure 2=
|crystal structure 2 prefix=
|crystal structure 2 ref=
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|speed of sound=
|speed of sound ref=
|speed of sound comment=
|speed of sound rod at 20=
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|speed of sound rod at r.t.=
|speed of sound rod at r.t. ref=
|speed of sound rod at r.t. comment=
|thermal expansion=
|thermal expansion ref=
|thermal expansion comment=
|thermal expansion at 25=
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|thermal conductivity=
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|thermal conductivity 2=
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|thermal diffusivity=
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|electrical resistivity=
|electrical resistivity unit prefix=
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|electrical resistivity comment=
|electrical resistivity at 0=
|electrical resistivity at 0 ref=
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|electrical resistivity at 20=
|electrical resistivity at 20 ref=
|electrical resistivity at 20 comment=
|band gap=
|band gap ref=
|band gap comment=
|Curie point K=
|Curie point ref=
|Curie point comment=
|magnetic ordering=
|magnetic ordering ref=
|magnetic ordering comment=
|tensile strength=
|tensile strength ref=
|tensile strength comment=
|Young's modulus=
|Young's modulus ref=
|Young's modulus comment=
|Shear modulus=
|Shear modulus ref=
|Shear modulus comment=
|Bulk modulus=
|Bulk modulus ref=
|Bulk modulus comment=
|Poisson ratio=
|Poisson ratio ref=
|Poisson ratio comment=
|Mohs hardness=
|Mohs hardness ref=
|Mohs hardness comment=
|Mohs hardness 2=
|Mohs hardness 2 ref=
|Mohs hardness 2 comment=
|Vickers hardness=
|Vickers hardness ref=
|Vickers hardness comment=
|Brinell hardness=
|Brinell hardness ref=
|Brinell hardness comment=
|CAS number=
|CAS number ref=
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<!-- History -->
|naming=
|predicted by=
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|prediction date=
|discovered by=
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|discovery date=
|first isolation by=
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|history comment label=
|history comment=
<!-- Isotopes -->
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|isotopes ref=
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<!-- other -->
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|QID=
}}
{{ Infobox element }} ; labels & notes:
(Image)
GENERAL PROPERTIES
Name
Symbol
Pronunciation (data central)
Alternative name(s)
Allotropes
Appearance
<element> IN THE PERIODIC TABLE
Periodic table
Atomic number
Standard atomic weight (data central)
Element category (also header bg color)
(sets header bg color, over 'series='-color)
Group
Period
Block
Electron configuration
Electrons per shell
PHYSICAL PROPERTIES
(general note)
Color
Phase
Melting point
Boiling point
Sublimation point
Density [g/L at s.t.p.]
Density [kg/m3 at s.t.p.]
Density [g/cm3 near room temperature]
[g/cm3 near r.t.], #2
[g/cm3 near r.t.], #3
Density (liquid, melting point) [g/cm3]
Density (liquid, boiling point) [g/cm3]
Molar volume
Unit defaults to cm3/mol
otherwise set unit prefix=d for dm3/mol (gases)
Triple point
Critical point
Heat of fusion
Heat of vaporization
Molar heat capacity
Vapor pressure
Vapor pressure
ATOMIC PROPERTIES
Electronegativity
Ionization energy
Atomic radius
Covalent radius
Van der Waals radius
MISCELLANEA
Crystal structure
Crystal structure
Speed of sound
Thermal expansion
Thermal conductivity
Thermal diffusivity
Electrical resistivity
Band gap
Curie point
Magnetic ordering
Tensile strength
Young's modulus
Shear modulus
Bulk modulus
Poisson ratio
Mohs hardness
Vickers hardness
Brinell hardness
CAS Number
HISTORY
Naming
Prediction
()
Discovery
()
First isolation
()
Discovery and first isolation (1 or 2 dates)
Named by
()
(History comment)
ISOTOPES OF <element>
Isotopes of <element>
(wp:engvar )
Isotopes are to be entered by the editor using these subtemplates:
Examples (from various elements):
| isotopes =
{{Infobox element/isotopes stable
| link=Fluorine-19 | mn=19 | sym=F | na=100% | n=10 }}
{{Infobox element/isotopes decay
| mn=251 | sym=Cf
| na=trace | hl=898 y
| dm=α | de=6.172 | link1=curium-247 | pn=247 | ps=Cm}}
{{Infobox element/isotopes decay2 | mn=252 | sym=Cf
| na=trace | hl=2.645 y
| dm1=α (96.91%)| de1=6.217 | link1=curium-248 | pn1=248 | ps1=Cm
| dm2=SF (3.09%)| de2=– | pn2= | ps2=–}}
{{Infobox element/isotopes decay3
| mn=26 | sym=Al | na=[[trace radioisotope|trace]] | hl={{val|7.17|e=5|ul=y}}
| dm1=[[Positron emission|β<sup>+</sup>]] | de1=1.17 | link1=magnesium-26
| pn1=26 | ps1=Mg
| dm2=[[electron capture|ε]] | de2=- | link2=magnesium-26 | pn2=26 | ps2=Mg
| dm3=[[Gamma radiation|γ]] | de3=1.8086 | pn3= | ps3=-
}}
{{Infobox element/isotopes decay3 (2 2 1)
| mn=22 | sym=Na | na=[[trace radioisotope|trace]]
| hl=[[1 E7 s|2.602]] [[year|y]] | dm1=[[Beta decay|β<sup>+</sup>]]→[[Gamma decay|γ]]
| de1a=0.5454 | link1a=neon-22 | pn1a=22 | ps1a=Ne*
| de1b=1.27453(2)<ref name=npa521_1>{{cite journal
| last=Endt | first=P. M.
| title=Energy levels of A = 21–44 nuclei (VII)
| journal=Nuclear Physics A | volume=521 | pages=1–400
| date=1990 | doi=10.1016/0375-9474(90)90598-G
| bibcode=1990NuPhA.521....1E
}}</ref> | pn1b=22 | ps1b=Ne
| dm2=[[electron capture|ε]]→[[Gamma decay|γ]]
| de2a=- | pn2a=22 | ps2a=Ne*
| de2b=1.27453(2)
| pn2b=22 | ps2b=Ne
| dm3=[[Beta decay|β<sup>+</sup>]] | de3=1.8200
| pn3=22 | ps3=Ne }}
{{Infobox element/isotopes_decay4 | mn=260 | sym=Md
| na=[[synthetic radioisotope|syn]] | hl=31.8 [[day|d]]
| dm1=SF | de1=- | pn1= | ps1=-
| dm2=α | de2=7.000 | link2=einsteinium-256 | pn2=256 | ps2=Es
| dm3=ε | de3=- | link3=fermium-260 | pn3=260 | ps3=Fm
| dm4=[[beta emission|β<sup>−</sup>]]
| de4=1.000 | link4=nobelium-260 | pn4=260 | ps4=No}}
|isotopes comment=reference{{sfn|Chisté|2006}}<br>
* = [[excited state]]
produces the subtable:
Other subtemplates are used automatically; they do not need specific editor's input.
{{ Periodic table (32 columns, micro) }}
When atomic number ≥ 119, the miniature periodic table shows an extended version (period 8 and up). See, for example, {{ Infobox ununennium }} .
References
These references will appear in the article, but this list appears only on this page.