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Gikan sa Wikipedia, ang gawasnong ensiklopedya
(Naredirek gikan sa Plutonium)


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Ununoctium (unknown chemical properties)
silvery white, tarnishing to dark gray in air
Two shiny pellets about 3 cm in diameter.
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphan plutonium, Pu, 94
Paglitok /plˈtniəm/
[[Help:Pronunciation respelling key|ploo-Plantilya:Smallcaps all-nee-əm]]
Kategoriyang elemento aktinido
Group, period, block [[group element|]], 7, f
Gibug-aton sa atomo (244)
Kontorno sa elektron [Rn] 5f6 7s2
2, 8, 18, 32, 24, 8, 2
Electron shells of plutonium (2, 8, 18, 32, 24, 8, 2)
Electron shells of plutonium (2, 8, 18, 32, 24, 8, 2)
Pagkadiskobre Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan (1940–1)
Physical properties
Phase magahi
Density (near r.t.) 19.816 g·cm−3
Liquid density at m.p. 16.63 g·cm−3
Melting point 912.5 K, 639.4 °C, 1182.9 °F
Boiling point 3505 K, 3228 °C, 5842 °F
Heat of fusion 2.82 kJ·mol−1
Heat of vaporization 333.5 kJ·mol−1
Molar heat capacity 35.5 J·mol−1·K−1
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 8, 7, 6, 5, 4, 3, 2, 1
(amphoteric oxide)
Electronegativity 1.28 (Pauling scale)
Ionization energies 1st: 584.7 kJ·mol−1
Atomic radius 159 pm
Covalent radius 187±1 pm
Crystal structure monoclinic
Plutonium has a monoclinic crystal structure
Magnetic ordering paramagnetic[1]
Electrical resistivity (0 °C) 1.460 µΩ·m
Thermal conductivity 6.74 W·m−1·K−1
Thermal expansion (25 °C) 46.7 µm·m−1·K−1
Speed of sound 2260 m·s−1
Young's modulus 96 GPa
Shear modulus 43 GPa
Poisson ratio 0.21
CAS registry number 7440-07-5
Most stable isotopes
Main article: Isotopes of plutonium
iso NA half-life DM DE (MeV) DP
238Pu trace 87.74 y SF 204.66[2]
α 5.5 234U
239Pu 100% 2.41 × 104 y SF 207.06
α 5.157 235U
240Pu trace 6.5 × 103 y SF 205.66
α 5.256 236U
241Pu syn 14 y β 0.02078 241Am
SF 210.83
242Pu trace 3.73 × 105 y SF 209.47
α 4.984 238U
244Pu trace 8.08 × 107 y α 4.666 240U
· r

Ang plutonyo (Iningles plutonium) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Pu ug kaiphan nga atomik 94. Ang plutonyo mao ang aktinido.

Ang mga gi basihan niini[usba | usba ang wikitext]

  1. Magnetic susceptibility of the elements and inorganic compounds, in Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.
  2. Magurno, B.A.; Pearlstein, S. (eds.) Workshop on nuclear data evaluation methods and procedures, Upton, NY, USA, 22 Septmber 1980, vol. II (1981), pp. 835 ff

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