Lawrencium vs Rutherfordium
Pick up to 3 elements and see how they stack up.
| Property | Lawrencium | Rutherfordium |
|---|---|---|
| Atomic number | 103 | 104 |
| Atomic mass | 266 | 267 |
| Electronegativity | 1.3 | — |
| Melting point | 1,900 K (1,626.8 °C) | — |
| Boiling point | — | — |
| Density | — | — |
| Atomic radius | — | — |
| Ionization energy | — | — |
| Discovered | 1961 | 1964 |
| Category | Actinide | Transition metal |
| State at room temp. | Solid | Unknown |
| Block | f | d |
| Group | — | 4 |
| Period | 7 | 7 |
| Valence electrons | 3 | 2 |
| Common charges | +3 | +4 |
| Electron configuration | [Rn] 5f14 7s2 7p1 | [Rn] 5f14 6d2 7s2 |