Krypton vs Mercury
| Property | Kr Krypton | Hg Mercury |
|---|---|---|
| Atomic number | 36 | 80 |
| Symbol | Kr | Hg |
| Name | Krypton | Mercury |
| Category | noble-gas | transition-metal |
| Standard Atomic Weight | 83.798 u | 200.592 u |
| Period | 4 | 6 |
| Group | 18 | 12 |
| Block | p | s |
| Phase at STP | gas | liquid |
| Electron configuration | [Ar]4s23d104p6 | [Xe]6s24f145d10 |
| Oxidation states | [0, 1, 2] | [-2, 1, 2] |
| Electronegativity (Pauling) | 3 | 2 |
| Electron affinity | -1 eV | -0.5 eV |
| Density | 3.733 kg/m³ | 1.353360e+4 kg/m³ |
| Melting point | -157.36 °C | -38.83 °C |
| Boiling point | -153.42 °C | 356.73 °C |
| Discovery year | 1898 | N/A |