Mercury (Hg) — Atomic Data, Electron Shells & Reactions

Atomic Number (Z) 80 IUPAC Symbol Hg Standard Atomic Weight 200.59 g/mol Period / Group / Block 6 / 12 / d-block Condensed Electron Config [Xe] 4f14 5d10 6s2 Full Subshell Config 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s2 Principal Shell Occupancy [2, 8, 18, 32, 18, 2] Pauling Electronegativity 2 First Ionization Energy 1007 kJ/mol Covalent Radius 132 pm Melting Point 234.32 K (-38.83 °C) Boiling Point 629.88 K (356.73 °C) Density 13.534 g/cm³ Oxidation States +2, +1