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Plutonium

Plutonium is a chemical element; it has symbol Pu and atomic number 94. It is a silvery-gray actinide metal that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibits six allotropes and four oxidation states. It reacts with carbon, halogens, nitrogen, silicon and hydrogen. When exposed to moist air, it forms…

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(near r.t.)
20.26 g/cm3 α-244 Pu
236Pu
synth
238Pu
trace
239Pu
trace
240Pu
trace
241Pu
synth

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Transportation

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Plutonium

Nodes383
Edges382
Triples386
Avg. degree1.99
Density0.005222
Components1

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Plutonium

Top relations

related to External links · 48
Plutonium → Alsos Digital Library, American Scientists, Archived, Argonne National Laboratory, August, Bhadeshia, Challenges, Chemical, Chemistry, Dangers, Discover Magazine, End, Fabrication, February, Federation, History, IEER, II, Lawrence Livermore National Laboratory, Lee University
related to Cold War use and waste · 28
Plutonium → According, Ambio, As, Carl Johnson, Cold War, Denver, Each, Edward Martell, EPA, Exposures, FBI, Hanford, In, Large, Much, Prevailing, Pu, Radioactive, Rocky Flats, Rocky Flats Plant
related to Early research · 24
Plutonium → About, Chicago, Chicago's Stagg Field, Construction, CP-1, DuPont, Early, Enough, Enrico Fermi, Glenn, Hanford, In November, Information, Met Lab, Metallurgical Laboratory, Oak Ridge, On August, On December, Seaborg, The
related to Discovery · 23
Plutonium → Arthur Wahl, Berkeley, Berkeley Radiation Laboratory, California, December, Edwin McMillan, Emilio Segrè, Enrico Fermi, February, Fermi, Fritz Strassmann, Germany, Glenn, Joseph, Kennedy, Neptunium-238, Nobel Lecture, Nuclear, Otto Hahn, Rome
related to Trinity and Fat Man atomic bombs · 17
Plutonium → About, Alamogordo, An, August, Fat Man, Gadget, Japan, July, Manhattan Project's Smyth Report, Nagasaki, New Mexico, Only, The, TNT, Together, Trinity, Urchin
related to Occurrence · 16
Plutonium → Based, Because, Cigar Lake Mine, Due, Earth, Finally, Gabon, However, Oklo, Small, Solar System, The, These, Trace, When, With
related to Compounds and chemistry · 12
Plutonium → At, III, IV, Pu, Pu3, Pu4, PuO, PuO2, PuO3, The, VI, VII
related to Physical properties · 12
Plutonium → Alpha, At, Heat, It, MeV, MOX-fuel, Pu, The, This, Unlike, When, With
related to Power and heat source · 12
Plutonium → Being, Cassini, Curiosity, Galileo, It, Mars, New Horizons, One, Perseverance, Plutonium-238, These, Voyager
related to Toxicity · 12
Plutonium → Contamination, Donald Mastick, Either, European, Even, Hiroshima, III, Japanese, Nagasaki, Studies, The, There

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Important terminology

nuclear element used uranium fission plutonium-239 form first also metal reactors decay isotopes atomic neutrons half-life found radiation years weapons

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Plutonium(near r.t.)20.26 g/cm3 α-244 Pu1.00infobox
Plutonium236Pusynth1.00infobox
Plutonium238Putrace1.00infobox
Plutonium239Putrace1.00infobox
Plutonium240Putrace1.00infobox
Plutonium241Pusynth1.00infobox
Plutonium242Pusynth1.00infobox
Plutonium244Putrace1.00infobox
PlutoniumAllotropessee Allotropes of plutonium1.00infobox
PlutoniumAppearancesilvery white, tarnishing to dark gray in air1.00infobox
Plutoniumat T (K)17561.00infobox
PlutoniumAtomic number (Z)941.00infobox
PlutoniumAtomic radiusempirical: 159 pm1.00infobox
PlutoniumBlockf-block1.00infobox
PlutoniumBoiling point3505 K ​(3228 °C, ​5842 °F)1.00infobox
PlutoniumCAS Number7440-07-51.00infobox
PlutoniumCovalent radius187±1 pm1.00infobox
PlutoniumCrystal structure​monoclinic (mP16)1.00infobox
PlutoniumDensity (at 20° C)19.85 g/cm3 α-239 Pu1.00infobox
PlutoniumDiscoveryGlenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan (1940–1941)1.00infobox
PlutoniumElectrical resistivity1.460 µΩ⋅m (at 0 °C)1.00infobox
PlutoniumElectron configuration[Rn] 5f6 7s21.00infobox
PlutoniumElectronegativityPauling scale: 1.281.00infobox
PlutoniumElectrons per shell2, 8, 18, 32, 24, 8, 21.00infobox
PlutoniumGroupf-block groups (no number)1.00infobox
PlutoniumHeat of fusion2.82 kJ/mol1.00infobox
PlutoniumHeat of vaporization333.5 kJ/mol1.00infobox
PlutoniumIonization energies1st: 584.7 kJ/mol1.00infobox
PlutoniumLattice constantsa = 0.6183 nm b = 0.4822 nm c = 1.0964 nm β = 101.79° (at 20 °C)1.00infobox
PlutoniumMagnetic orderingparamagnetic1.00infobox

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