ଛାଞ୍ଚ:Infobox Plutonium

ଉଇକିପିଡ଼ିଆ ରୁ
ସିଧାସଳଖ ଯିବେ ଦିଗବାରେଣିକୁ, ଖୋଜିବେ
Plutonium
94Pu
Sm

Pu

(Uqh)
neptuniumplutoniumamericium
ଭୌତିକ ରୁପ
silvery white, tarnishing to dark gray in air
Two shiny pellets about 3 cm in diameter.
ସାଧାରଣ ଧର୍ମ
ନାମ, ପ୍ରତୀକ,
ପରମାଣୁ କ୍ରମାଙ୍କ
plutonium, Pu,
94
ଉଚ୍ଚାରଣ /plˈtniəm/
ploo-toh-nee-əm
ମୌଳିକ ପ୍ରକାର actinide
ଶ୍ରେଣୀ, ପର୍ଯ୍ୟାୟ, ବ୍ଲକ୍ n/a, 7, f
ମାନକ ପରମାଣବିକ ଓଜନ (244)
ଇଲେକ୍‌ଟ୍ରୋନ୍ ବିନ୍ୟାସ [Rn] 5f6 7s2
2, 8, 18, 32, 24, 8, 2
Electron shells of plutonium (2, 8, 18, 32, 24, 8, 2)
ଇତିହାସ
ଆବିଷ୍କାର Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan (1940–1)
ଭୌତିକ ଧର୍ମ
ଅବସ୍ଥା solid
(ରୁମ୍ ଟେମ୍ପରେଚର୍‌ରେ ଘନତା) 19.816 g·cm−3
Liquid density at m.p. 16.63 g·cm−3
ଗଳନାଙ୍କ 912.5 K, 639.4 °C, 1182.9 °F
ସ୍ଫୁଟନାଙ୍କ 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
Miscellanea
Crystal structure monoclinic
Magnetic ordering paramagnetic[୧]
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[୨]
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
SF
· r

References

These references will appear in the article, but this list appears only on this page.
  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