Niobium vs Molybdenum
Pick up to 3 elements and see how they stack up.
| Property | Niobium | Molybdenum |
|---|---|---|
| Atomic number | 41 | 42 |
| Atomic mass | 92.906 | 95.95 |
| Electronegativity | 1.6 | 2.16 |
| Melting point | 2,750 K (2,476.8 °C) | 2,896 K (2,622.8 °C) |
| Boiling point | 5,017 K (4,743.8 °C) | 4,912 K (4,638.8 °C) |
| Density | 8.57 g/cm³ | 10.28 g/cm³ |
| Atomic radius | 207 pm | 209 pm |
| Ionization energy | 6.759 eV | 7.092 eV |
| Discovered | 1801 | 1778 |
| Category | Transition metal | Transition metal |
| State at room temp. | Solid | Solid |
| Block | d | d |
| Group | 5 | 6 |
| Period | 5 | 5 |
| Valence electrons | 1 | 1 |
| Common charges | +3, +5 | +6 |
| Electron configuration | [Kr] 4d4 5s1 | [Kr] 4d5 5s1 |