Tantalum

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Tantalum
Ta
In situ availability:
Necessity:
Atomic number: 73
Atomic mass: 180.9479
group: 5
period: 6
normal phase: Solid
series: Transition Metals
density: 16.69 g/cm3
melting point: 3290K,
3017°C,
5463°F
boiling point: 5731K,
5458°C,
9856°F
ZrNbMo
Hf ← Ta → W
RfDbSg
Atomic radius (pm): 145
Bohr radius (pm): 200
Covalent radius (pm): 138
Van der Waals radius (pm):
ionic radius (pm): (+5) 64
1st ion potential (eV): 7.89
Electron Configuration
1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6 4d10 4f14
5s2 5p6 5d3
6s2
Electrons Per Shell
2, 8, 18, 32, 11, 2
Electronegativity: 1.5
Electron Affinity: 0.32
Oxidation states: 5
Magnetism: ?
Crystal structure: Body centered cubic

Tantalum is a Transition Metal in group 5. It has a Body centered cubic crystalline structure. This element has a stable isotope of 181




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