Silicon vs Niobium
| Property | Si Silicon | Nb Niobium |
|---|---|---|
| Atomic number | 14 | 41 |
| Symbol | Si | Nb |
| Name | Silicon | Niobium |
| Category | metalloid | transition-metal |
| Standard Atomic Weight | 28.085 u | 92.90637 u |
| Period | 3 | 5 |
| Group | 14 | 5 |
| Block | p | s |
| Phase at STP | solid | solid |
| Electron configuration | [Ne]3s23p2 | [Kr]5s14d4 |
| Oxidation states | [-4, -3, -2, -1, 0, 1, 2, 3, 4] | [-3, -1, 0, 1, 2, 3, 4, 5] |
| Electronegativity (Pauling) | 1.9 | 1.6 |
| Electron affinity | 1.385 eV | 0.893 eV |
| Density | 2329.6 kg/m³ | 8570 kg/m³ |
| Melting point | 1413.85 °C | 2476.85 °C |
| Boiling point | 3264.85 °C | 4743.85 °C |
| Discovery year | 1824 | 1801 |