# Ùráníọ̀m

Uranium, 92U|  |
| Uranium |
| Pípè |  /jʊəˈreɪniəm/ ​(*ewr-AY-nee-əm*) |
| Ìhànsójú | silvery gray metallic; corrodes to a spalling black oxide coat in air |
| Ìwúwo átọ̀mù *A*r, std(U) | 238.02891(3) |
| Uranium ní orí tábìlì àyè |
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|  |  |  |
| --- | --- | --- |
| 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 | Iron | Cobalt | Nickel | Copper | Zinc | Gallium | Germanium | Arsenic | Selenium | Bromine | Krypton |
| Rubidium | Strontium | Yttrium |  |  | Zirconium | Niobium | Molybdenum | Technetium | Ruthenium | Rhodium | Palladium | Silver | 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 | Gold | Mercury (element) | Thallium | Lead | 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 | Nihonium | Flerovium | Moscovium | Livermorium | Tennessine | Oganesson |

 | Nd ↑ **U** ↓ (Uqb) |
| protactinium ← **uranium** → neptunium |

 |

 |
| Nọ́mbà átọ̀mù (*Z*) | 92 |
| Ẹgbẹ́ | group n/a |
| Àyè | àyè 7  |
| Àdìpọ̀ | Àdìpọ̀-f  |
| Ẹ̀ka ẹ́límẹ́ntì |   Actinide |
| Ìtò ẹ̀lẹ́ktrọ́nù | [Rn] 5f3 6d1 7s2 |
| Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan | 2, 8, 18, 32, 21, 9, 2 |
| Àwọn ohun ìní ara |
| Ìfarahàn at STP | solid |
| Ìgbà ìyọ́ | 1405.3 K ​(1132.2 °C, ​2070 °F)  |
| Ígbà ìhó | 4404 K ​(4131 °C, ​7468 °F)  |
| Kíki (near r.t.) | 19.1 g/cm3 |
| when liquid (at m.p.) | 17.3 g/cm3  |
| Heat of fusion | 9.14 kJ/mol  |
| Heat of  | 417.1 kJ/mol  |
| Molar heat capacity | 27.665 J/(mol·K)  |
| **pressure**

| *P* (Pa) | 1 | 10 | 100 | 1 k | 10 k | 100 k |
| --- | --- | --- | --- | --- | --- | --- |
| at *T* (K) | 2325 | 2564 | 2859 | 3234 | 3727 | 4402 |

 |
| Atomic properties |
| Oxidation states | +1, +2, +3, +4, +5, **+6** Àdàkọ:Infobox element/symbol-to-oxidation-state/comment |
| Electronegativity | Pauling scale: 1.38  |
| Atomic radius | empirical: 156 pm  |
| Covalent radius | 196±7 pm  |
| Van der Waals radius | 186 pm  |
| Color lines in a spectral range**Spectral lines of uranium** |
| Other properties |
| Natural occurrence | primordial |
| Crystal structure |  ​orthorhombic |
| Speed of sound  thin rod | 3155 m/s (at 20 °C)  |
| Thermal expansion | 13.9 µm/(m·K) (at 25 °C)  |
| Thermal conductivity | 27.5 W/(m·K)  |
| Electrical resistivity | 0.280 µ Ω·m (at 0 °C)  |
| Magnetic ordering | paramagnetic  |
| Young's modulus | 208 GPa  |
| Shear modulus | 111 GPa  |
| Bulk modulus | 100 GPa  |
| Poisson ratio | 0.23  |
| CAS Number | 7440-61-1  |
| Main isotopes of uranium |
|

| Iso­tope | Abun­dance | Half-life (*t*1/2) | Decay mode | Pro­duct |
| --- | --- | --- | --- | --- |
| 232U | syn | 68.9 y | α & SF | 5.414 | 228Th |
| 233U | syn | 159,200 y | SF & α | 4.909 | 229Th |
| 234U | 0.0054% | 245,500 y | SF & α | 4.859 | 230Th |
| 235U | 0.7204% | 7.038×108 y | SF & α | 4.679 | 231Th |
| 236U | trace | 2.342×107 y | SF & α | 4.572 | 232Th |
| 238U | 99.2742% | 4.468×109 y | SF & α | 4.270 | 234Th |

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**Ùráníọ̀m** tabi **Uranium** je apilese kemika onide bi fadaka funfun ninu eseese aktinidi ti tabili igba to ni nomba atomu 92. O ni ami-idamo kemika **U**. Atomu uraniom kan ni 92 awon protoni 92 ati awon elektroni 92.

## Itokasi