The Periodic Table of Elements
41
Nb
Niobium
92.90638(2) amu
Additional Information:
| State | Group Block | Density | Atomic Radius | Electron Affinity | Ionization Energy | Melting Point | Boiling Point | Year Discovered |
|---|---|---|---|---|---|---|---|---|
| solid | transition metal | 8.57 kg/L | 137 pm | -86 | 652 kJ/mol | 2750 °K | 5017 °K | 1801 |
