Silicon vs Radon
| Property | Si Silicon | Rn Radon |
|---|---|---|
| Atomic number | 14 | 86 |
| Symbol | Si | Rn |
| Name | Silicon | Radon |
| Category | metalloid | noble-gas |
| Standard Atomic Weight | 28.085 u | 222 u |
| Period | 3 | 6 |
| Group | 14 | 18 |
| Block | p | p |
| Phase at STP | solid | gas |
| Electron configuration | [Ne]3s23p2 | [Xe]6s24f145d106p6 |
| Oxidation states | [-4, -3, -2, -1, 0, 1, 2, 3, 4] | [0, 2, 6] |
| Electronegativity (Pauling) | 1.9 | N/A |
| Electron affinity | 1.385 eV | -0.7 eV |
| Density | 2329.6 kg/m³ | 9.73 kg/m³ |
| Melting point | 1413.85 °C | -71.15 °C |
| Boiling point | 3264.85 °C | -61.7 °C |
| Discovery year | 1824 | 1900 |