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| عمومي خواص |
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| Pronunciation |
/pluːˈtoʊniəm/
ploo-TOH-nee-əm |
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| Appearance |
silvery white, tarnishing to dark gray in air |
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|
| Plutonium په دوراني جدول کې |
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|
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| اټومي شمیره (Z) |
94 |
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| گروپ, پیریود |
group n/a, period 7 |
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| بلاک |
f-block |
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| Element category |
actinide |
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| Mass number |
244 (most stable isotope) |
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| Electron configuration |
[Rn] 5f6 7s2 |
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Electrons per shell |
2, 8, 18, 32, 24, 8, 2 |
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| فزیکي خواص |
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| حالت (at STP) |
جامد |
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| دويلې کيدو ټکى |
912.5 K (639.4 °C, 1182.9 °F) |
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| يشنا ټکی |
3505 K (3228 °C, 5842 °F) |
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| Density near r.t. |
19.816 g/cm3 |
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| when liquid, at m.p. |
16.63 g/cm3 |
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| Heat of fusion |
2.82 kJ/mol |
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| Heat of vaporization |
333.5 kJ/mol |
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| Molar heat capacity |
35.5 J/(mol·K) |
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Vapor pressure
| P (Pa)
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
|
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| at T (K)
|
1756
|
1953
|
2198
|
2511
|
2926
|
3499
|
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| اټومي خواص |
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| Oxidation states |
8, 7, 6, 5, 4, 3, 2, 1 (an amphoteric oxide) |
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| Electronegativity |
Pauling scale: 1.28 |
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| Ionization energies |
|
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| Atomic radius |
empirical: 159 pm |
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| Covalent radius |
187±1 pm |
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| Miscellanea |
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| Crystal structure |
monoclinic |
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| Speed of sound |
2260 m/s |
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| Thermal expansion |
46.7 µm/(m·K) (at 25 °C) |
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| د تودوخې تېرېدنه |
6.74 W/(m·K) |
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| Electrical resistivity |
1.460 µΩ·m (at 0 °C) |
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| Magnetic ordering |
paramagnetic |
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| Young's modulus |
96 GPa |
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| Shear modulus |
43 GPa |
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| Poisson ratio |
0.21 |
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| CAS Number |
7440-07-5 |
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| History |
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| Naming |
after dwarf planet Pluto, itself named after classical god of the underworld Pluto |
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| Discovery |
Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan (1940–1) |
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| Main isotopes of plutonium |
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| references | in Wikidata |
دا ليکنه نابشپړه ده، تاسې ددې ليکنې په بشپړولو کې د ويکيپېډيا سره مرسته کولای شئ.