Tantalum
(Redirected from Ta)
| 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 |
| Zr ← Nb → Mo | |
| Hf ← Ta → W | |
| Rf ← Db → Sg | |
| 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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