Lead vs Uranium
Pick up to 3 elements and see how they stack up.
| Property | Lead | Uranium |
|---|---|---|
| Atomic number | 82 | 92 |
| Atomic mass | 207.2 | 238.03 |
| Electronegativity | 2.33 | 1.38 |
| Melting point | 600.61 K (327.5 °C) | 1,405.3 K (1,132.2 °C) |
| Boiling point | 2,022 K (1,748.8 °C) | 4,404 K (4,130.8 °C) |
| Density | 11.34 g/cm³ | 19.1 g/cm³ |
| Atomic radius | 202 pm | 240 pm |
| Ionization energy | 7.417 eV | 6.194 eV |
| Discovered | Ancient | 1789 |
| Category | Post-transition metal | Actinide |
| State at room temp. | Solid | Solid |
| Block | p | f |
| Group | 14 | — |
| Period | 6 | 7 |
| Valence electrons | 4 | 2 |
| Common charges | +2, +4 | +3, +4, +5, +6 |
| Electron configuration | [Xe] 4f14 5d10 6s2 6p2 | [Rn] 5f3 6d1 7s2 |