Hydrogen vs Lead
| Property | H Hydrogen | Pb Lead |
|---|---|---|
| Atomic number | 1 | 82 |
| Symbol | H | Pb |
| Name | Hydrogen | Lead |
| Category | nonmetal | post-transition-metal |
| Standard Atomic Weight | 1.007975 u | 207.2 u |
| Period | 1 | 6 |
| Group | 1 | 14 |
| Block | s | p |
| Phase at STP | gas | solid |
| Electron configuration | 1s1 | [Xe]6s24f145d106p2 |
| Oxidation states | [-1, 1] | [-4, -2, -1, 0, 1, 2, 3, 4] |
| Electronegativity (Pauling) | 2.2 | 2.33 |
| Electron affinity | 0.75419 eV | 0.364 eV |
| Density | 0.08988 kg/m³ | 1.134200e+4 kg/m³ |
| Melting point | -259.34 °C | 327.46 °C |
| Boiling point | -252.87 °C | 1748.85 °C |
| Discovery year | 1766 | 2021 |