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Plutonium, 94Pu |
Plutonium |
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Pípè | /pluːˈtoʊniəm/ (ploo-TOH-nee-əm) |
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Ìhànsójú | silvery white |
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nọ́mbà ìsújọ | [244] |
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Plutonium ní orí tábìlì àyè |
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Nọ́mbà átọ̀mù (Z) | 94 |
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Ẹgbẹ́ | group n/a |
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Àyè | àyè 7 |
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Àdìpọ̀ | Àdìpọ̀-f |
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Ẹ̀ka ẹ́límẹ́ntì | Actinide |
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Ìtò ẹ̀lẹ́ktrọ́nù | [Rn] 5f6 7s2 |
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Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan | 2, 8, 18, 32, 24, 8, 2 |
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Àwọn ohun ìní ara |
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Ìfarahàn at STP | solid |
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Ìgbà ìyọ́ | 912.5 K (639.4 °C, 1182.9 °F) |
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Ígbà ìhó | 3505 K (3228 °C, 5842 °F) |
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Kíki (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 | 333.5 kJ/mol |
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Molar heat capacity | 35.5 J/(mol·K) |
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pressure
P (Pa)
|
1
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10
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100
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1 k
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10 k
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100 k
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at T (K)
|
1756
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1953
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2198
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2511
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2926
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3499
|
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Atomic properties |
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Oxidation states | +2, +3, +4, +5, +6, +7 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment |
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Electronegativity | Pauling scale: 1.28 |
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Atomic radius | empirical: 159 pm |
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Covalent radius | 187±1 pm |
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Spectral lines of plutonium |
Other properties |
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Natural occurrence | from decay |
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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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Thermal conductivity | 6.74 W/(m·K) |
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Electrical resistivity | 1.460 µ Ω·m (at 0 °C) |
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Magnetic ordering | paramagnetic[1] |
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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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Main isotopes of plutonium |
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Àdàkọ:Category-inline | references |
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References
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