Niobium

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Niobium
Nb
In situ availability:
Necessity:
Atomic number: 41
Atomic mass: 92.90638
group: 5
period: 5
normal phase: Solid
series: Transition Metals
density: 8.57 g/cm3
melting point: 2750K,
2477°C,
4491°F
boiling point: 5017K,
4744°C,
8571°F
TiVCr
Zr ← Nb → Mo
HfTaW
Atomic radius (pm): 145
Bohr radius (pm): 198
Covalent radius (pm): 137
Van der Waals radius (pm):
ionic radius (pm): (+5) 64
1st ion potential (eV): 6.76
Electron Configuration
1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6 4d4
5s1
Electrons Per Shell
2, 8, 18, 12, 1
Electronegativity: 1.6
Electron Affinity: 0.9
Oxidation states: 5, 3
Magnetism: ?
Crystal structure: Body centered cubic

Niobium is a Transition Metal in group 5. It has a Body centered cubic crystalline structure. This element has a stable isotope of 93




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