Template:Infobox plutonium

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Plutonium, 94Pu
Template:Infobox element/symbol-to-top-image/alt
Plutonium
Pronunciation/plˈtniəm/ (ploo-TOH-nee-əm)
Appearancesilvery white, tarnishing to dark gray in air
Mass number[244]
Plutonium in the periodic cairt
Hydrogen Helium
Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon
Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon
Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Airn Cobalt Nickel Capper Zinc Gallium Germanium Arsenic Selenium Bromine Krypton
Rubidium Strontium Yttrium Zirconium Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Siller (element) Cadmium Indium Tin Antimony Tellurium Iodine Xenon
Caesium Barium Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Iridium Platinum Gowd Mercur (element) Thallium Leid (element) Bismuth Polonium Astatine Radon
Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium Fermium Mendelevium Nobelium Lawrencium Rutherfordium Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenium Copernicium Ununtrium Flerovium Ununpentium Livermorium Ununseptium Ununoctium
Sm

Pu

(Uqh)
neptuniumplutoniumamericium
Atomic nummer (Z)94
Groupgroup n/a
Periodperiod 7
Blockf-block
Element category  Actinide
Electron confeeguration[Rn] 5f6 7s2
Electrons per shell2, 8, 18, 32, 24, 8, 2
Pheesical properties
Phase at STPsolit
Meltin pynt912.5 K ​(639.4 °C, ​1182.9 °F)
Bylin pynt3505 K ​(3228 °C, ​5842 °F)
Density (near r.t.)19.816 g/cm3
when liquid (at m.p.)16.63 g/cm3
Heat o fusion2.82 kJ/mol
Heat o vapourisation333.5 kJ/mol
Molar heat capacity35.5 J/(mol·K)
Vapour pressur
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1756 1953 2198 2511 2926 3499
Atomic properties
Oxidation states+1, +2, +3, +4, +5, +6, +7 (an amphoteric oxide)
ElectronegativityPauling scale: 1.28
Ionisation energies
  • 1st: 584.7 kJ/mol
Atomic radiusempirical: 159 pm
Covalent radius187±1 pm
Colour lines in a spectral range
Colour lines in a spectral range
Spectral lines o plutonium
Ither properties
Creestal structurmonoclinic
Monoclinic creestal structur for plutonium
Speed o soond2260 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 orderinparamagnetic
Young's modulus96 GPa
Shear modulus43 GPa
Poisson ratio0.21
CAS Nummer7440-07-5
History
Naminafter dwarf planet Pluto, itsel named efter clessical god o the unnerwarld Pluto
DiskiveryGlenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan (1940–1)
Main isotopes o plutonium
Iso­tope Abun­dance Hauf-life (t1/2) Decay mode Pro­duct
238Pu trace 87.74 y SF
α 234U
239Pu trace 2.41×104 y SF
α 235U
240Pu trace 6.5×103 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
| references
style="text-align:left"|
in calc from C diff report ref
C 639.4
K 912.5 912.5 0
F 1182.9 1182.9 0
WD Edit this at Wikidata
input C: 639.4, K: 912.5, F: 1182.9
comment
style="text-align:left"|
in calc from C diff report ref
C 3228
K 3505 3501 4 delta
F 5842 5842 0
WD Edit this at Wikidata
input C: 3228, K: 3505, F: 5842
comment

References