Chlorine vs Lead
| Property | Cl Chlorine | Pb Lead |
|---|---|---|
| Atomic number | 17 | 82 |
| Symbol | Cl | Pb |
| Name | Chlorine | Lead |
| Category | halogen | post-transition-metal |
| Standard Atomic Weight | 35.4515 u | 207.2 u |
| Period | 3 | 6 |
| Group | 17 | 14 |
| Block | p | p |
| Phase at STP | gas | solid |
| Electron configuration | [Ne]3s23p5 | [Xe]6s24f145d106p2 |
| Oxidation states | [-1, 1, 2, 3, 4, 5, 6, 7] | [-4, -2, -1, 0, 1, 2, 3, 4] |
| Electronegativity (Pauling) | 3.16 | 2.33 |
| Electron affinity | 3.6127 eV | 0.364 eV |
| Density | 3.214 kg/m³ | 1.134200e+4 kg/m³ |
| Melting point | -101.5 °C | 327.46 °C |
| Boiling point | -34.04 °C | 1748.85 °C |
| Discovery year | 1774 | 2021 |