Chlorine vs Mercury
| Property | Cl Chlorine | Hg Mercury |
|---|---|---|
| Atomic number | 17 | 80 |
| Symbol | Cl | Hg |
| Name | Chlorine | Mercury |
| Category | halogen | transition-metal |
| Standard Atomic Weight | 35.4515 u | 200.592 u |
| Period | 3 | 6 |
| Group | 17 | 12 |
| Block | p | s |
| Phase at STP | gas | liquid |
| Electron configuration | [Ne]3s23p5 | [Xe]6s24f145d10 |
| Oxidation states | [-1, 1, 2, 3, 4, 5, 6, 7] | [-2, 1, 2] |
| Electronegativity (Pauling) | 3.16 | 2 |
| Electron affinity | 3.6127 eV | -0.5 eV |
| Density | 3.214 kg/m³ | 1.353360e+4 kg/m³ |
| Melting point | -101.5 °C | -38.83 °C |
| Boiling point | -34.04 °C | 356.73 °C |
| Discovery year | 1774 | N/A |