Copernicium (Cn) — Atomic Data, Electron Shells & Reactions

Atomic Number (Z) 112 IUPAC Symbol Cn Standard Atomic Weight 285 g/mol Period / Group / Block 7 / 12 / d-block Condensed Electron Config [Rn] 5f14 6d10 7s2 Full Subshell Config 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 Principal Shell Occupancy [2, 8, 18, 32, 32, 18, 2] Pauling Electronegativity — First Ionization Energy 1155 kJ/mol Covalent Radius 122 pm Melting Point 283 K (9.85 °C) Boiling Point 340 K (66.85 °C) Density 14 g/cm³ Oxidation States +2, 0