Template:Infobox plutonium

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[[Category:Template:Pagetype with short description]]

Plutonium, 94Pu
Two shiny pellets of plutonium of about 3 cm in diameter
Plutonium
Pronunciation/plˈtniəm/ (Template:Respell)
Appearancesilvery white, tarnishing to dark gray in air
Mass number[244]
Plutonium in the periodic table
Template:Periodic table (32 columns, micro) Sm

Pu

(Uqo)
neptuniumplutoniumamericium
Atomic number (Z)94
Groupn/a
Periodperiod 7
Block  f-block
Electron configuration[Rn] 5f6 7s2
Electrons per shell2, 8, 18, 32, 24, 8, 2
Physical properties
Phase at STPsolid
Melting point912.5 K ​(639.4 °C, ​1182.9 °F)
Boiling point3505 K ​(3228 °C, ​5842 °F)
Density (near r.t.)19.85 (239Pu)[1] g/cm3
when liquid (at m.p.)16.63 g/cm3
Heat of fusion2.82 kJ/mol
Heat of vaporization333.5 kJ/mol
Molar heat capacity35.5 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
Atomic properties
Oxidation states+2, +3, +4, +5, +6, +7, +8 (an amphoteric oxide)
ElectronegativityPauling scale: 1.28
Ionization energies
  • 1st: 584.7 kJ/mol
Atomic radiusempirical: 159 pm
Covalent radius187±1 pm
Color lines in a spectral range
Spectral lines of plutonium
Other properties
Natural occurrencefrom decay
Crystal structuremonoclinic
Monoclinic crystal structure for plutonium
Speed of sound2260 m/s
Thermal expansion46.7 µm/(m·K) (at 25 °C)
Thermal conductivity6.74 W/(m·K)
Electrical resistivity1.460 µΩ·m (at 0 °C)
Magnetic orderingparamagnetic
Young's modulus96 GPa
Shear modulus43 GPa
Poisson ratio0.21
CAS Number7440-07-5
History
Namingafter dwarf planet Pluto, itself named after classical god of the underworld Pluto
DiscoveryGlenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan (1940–1)
Main isotopes of plutonium
[[Isotope|IsoTemplate:Shytope]] [[Natural abundance|AbunTemplate:Shydance]] Half-life (t1/2) Decay mode [[Decay product|ProTemplate:Shyduct]]
238Pu trace 87.74 y SF
α 234U
239Pu trace 2.41×104 y SF
α 235U
240Pu trace 6500 y SF
α 236U
241Pu syn 14 y β 241Am
SF
242Pu syn 3.73×105 y SF
α 238U
244Pu trace 8.08×107 y α 240U
SF
Category Category: Plutonium
| references

[[Category:Infobox templates|Template:Remove first word]]

data m.p. cat
in calc from C diff report ref
C 639.4
K 912.5 912.5 0
F 1182.9 1182.9 0 Template:Subpage other
max precision 1
WD Template:Wikidata Script error: No such module "EditAtWikidata". Template:Wikidata
input C: 639.4, K: 912.5, F: 1182.9
comment
data b.p. cat
in calc from C diff report ref
C 3228
K 3505 3501 4 delta
F 5842 5842 0 Template:Subpage other
max precision 0
WD Template:Wikidata Script error: No such module "EditAtWikidata". Template:Wikidata
input C: 3228, K: 3505, F: 5842
comment
Np ←

i'box Np

iso
94
Pu (E)
→ Am

i'box Am

  Data sets read by {{Infobox element}}
Name and identifiers
Top image (caption, alt)
Pronunciation
Category (enwiki)
Standard atomic weight
  most stable isotope
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image
Electron configuration (cmt, ref)
Term symbol * (cmt, ref)
Wikidata *
* Not used in {{Infobox element}} (2019-02-03)
See also {{Infobox element/symbol-to--navbox}}

References

  1. 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 Siegfried S. Hecker (2000). "Plutonium and its alloys: from atoms to microstructure" (PDF). Los Alamos Science. 26: 331.. 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.

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