Silicon vs Phosphorus
Pick up to 3 elements and see how they stack up.
| Property | Silicon | Phosphorus |
|---|---|---|
| Atomic number | 14 | 15 |
| Atomic mass | 28.085 | 30.974 |
| Electronegativity | 1.9 | 2.19 |
| Melting point | 1,687 K (1,413.8 °C) | 317.3 K (44.2 °C) |
| Boiling point | 3,538 K (3,264.8 °C) | 553.7 K (280.6 °C) |
| Density | 2.329 g/cm³ | 1.823 g/cm³ |
| Atomic radius | 210 pm | 180 pm |
| Ionization energy | 8.152 eV | 10.487 eV |
| Discovered | 1823 | 1669 |
| Category | Metalloid | Reactive nonmetal |
| State at room temp. | Solid | Solid |
| Block | p | p |
| Group | 14 | 15 |
| Period | 3 | 3 |
| Valence electrons | 4 | 5 |
| Common charges | +4, −4 | −3 |
| Electron configuration | [Ne] 3s2 3p2 | [Ne] 3s2 3p3 |