## Uranium |

Symbol | U |
---|---|

Latin name | Uranium |

Atomic number | 92 |

Period | 7 |

Element category | Inner transition elements |

Relative atomic mass | 238.0289 |

Group | VI.B |

Electronegativity | 1.7 |

Oxidation numbers | 3, 1, 5, 6 |

Electron configuration | 1s ^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{6} 4d^{10} 5s^{2} 5p^{6} 4f^{14} 5d^{10} 6s^{2} 6p^{6} 5f^{3} 6d^{1} 7s^{2} |

Density [g/cm^{3}] | 19.03 |

State | Solid |

Melting point [°C] | 1132.3 |

Boiling point [°C] | 3900 |

Thermal conductivity [W m^{-1}K^{-1}] | 27.6 |

Heat capacity [J K^{-1}g^{-1}] | 0.12 |

Discovery | 1789 |

Hardness [Mohs scale] | 6.0 |

Vickers hardness [MPa] | 1960 |

Brinell hardness [MPa] | 2400 |

Young's modulus [GPa] | 208 |

Electrical conductivity [S m^{-1}] | 3.6 · 10 ^{-6} |

Shear modulus [GPa] | 111 |

1.st ionization energy [eV] | 6.1941 |

Stable isotopes | 0 |

Unstable isotopes | 15 |