Hydrogen vs Silicon
| Property | H Hydrogen | Si Silicon |
|---|---|---|
| Atomic number | 1 | 14 |
| Symbol | H | Si |
| Name | Hydrogen | Silicon |
| Category | nonmetal | metalloid |
| Standard Atomic Weight | 1.007975 u | 28.085 u |
| Period | 1 | 3 |
| Group | 1 | 14 |
| Block | s | p |
| Phase at STP | gas | solid |
| Electron configuration | 1s1 | [Ne]3s23p2 |
| Oxidation states | [-1, 1] | [-4, -3, -2, -1, 0, 1, 2, 3, 4] |
| Electronegativity (Pauling) | 2.2 | 1.9 |
| Electron affinity | 0.75419 eV | 1.385 eV |
| Density | 0.08988 kg/m³ | 2329.6 kg/m³ |
| Melting point | -259.34 °C | 1413.85 °C |
| Boiling point | -252.87 °C | 3264.85 °C |
| Discovery year | 1766 | 1824 |