41
Nb
92.906
Niobium
Element 41 · 92.906 u · d-block
transition metal
A soft, grey metal used in superconducting magnets (like those in MRI machines and particle accelerators).
Phase (STP)
Solid
Melting Point
2477 °C
Boiling Point
4744 °C
Density
8.57 g/cm³
Electronegativity
1.6
Atomic Radius
145 pm
Ionization Energy
652 kJ/mol
Electron Affinity
86 kJ/mol
Discovered
1801 · Charles Hatchett
Electron Configuration
[Kr] 4d4 5s1
Electron Orbitals
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