## Mercury |

Symbol | Hg |
---|---|

Latin name | Hydrargyrum |

Atomic number | 80 |

Period | 6 |

Element category | Transition elements |

Relative atomic mass | 200.59 |

Group | II.B |

Electronegativity | 1.9 |

Oxidation numbers | 1, 2 |

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} |

Density [g/cm^{3}] | 13.546 |

State | Liquid |

Melting point [°C] | -38.862 |

Boiling point [°C] | 356.66 |

Critical point [°C] | 1477 |

Critical pressure [MPa] | 172 |

Atomic radius [pm] | 171 |

Covalent radius [pm] | 149 |

Thermal conductivity [W m^{-1}K^{-1}] | 8.34 |

Heat capacity [J K^{-1}g^{-1}] | 0.140 |

Discovery | Antiquity |

Hardness [Mohs scale] | 1.5 |

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

Electrical resistivity [10^{-6}Ω.m] | 0.959 |

1.st ionization energy [eV] | 10.4375 |

2.nd ionization energy [eV] | 18.759 |

3.rd ionization energy [eV] | 34.202 |

Stable isotopes | 7 |

Unstable isotopes | 19 |