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General information about Niobium |
| Niobium |
| Nb |
| 41 |
| Transition Metals |
| 5 |
| 5 |
| d |
| gray metallic |
| 92.90638 g·mol-1 |
| 1s2 2s2p6 3s2p6d10 4s2p6d4 5s1 |
| 2, 8, 18, 12, 1 |
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Physical properties of Niobium |
| solid |
| 8.57 g·cm-3 |
| 2750(K), 2477°C, 4491°F |
| 5017(K),
4744°C, 8571°F |
| ? |
| ? |
| 30 kJ·mol-1 |
| 689.9 kJ·mol-1 |
| 24.6 J·mol-1·K-1 |
| 1.6 (Pauling scale) |
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Atomic structure of Niobium |
| 2.08 Å |
| 10.87 cm³/mol |
| 1.34 Å |
| 1.15 |
| Cubic body centered |
| 69 (+5e) |
| 4d4 |
| 41 |
| 52 |
| 41 |
| 5, 3 |
| 4d4 5s1 |
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Electron dot
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Other languages |
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| Latin: |
Niobium |
| Czech: |
Niob |
| Croatian: |
Niobij |
| French: |
Niobium |
| German: |
Niob - r |
| Italian: |
Niobio |
| Norwegian: |
Niob |
| Portuguese: |
Nióbio |
| Spanish: |
Niobio |
| Swedish: |
Niob |
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| Element |
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41 |
2
8
18
12
1
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Nb |
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92.90638 |
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Brief description |
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Platinum-white with a bright metallic luster, although niobium takes on a bluish cast when exposed to air at room temperatures for a long time. Niobium is ductile, malleable, and highly resistant to corrosion. Niobium does not naturally occur in the free state; it is usually found with tantalum.
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Uses of Niobium |
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Niobium, like tantalum, can act as an electrolytic valve allowing alternating current to pass in only one direction through an electrolytic cell. Niobium is used in arc-welding rods for stabilized grades of stainless steel. It is also used in advanced air frame systems. Superconductive magnets are made with Nb-Zr wire, which retains superconductivity in strong magnetic fields. Niobium is used in lamp filaments and to make jewelry. It is capable of being colored by an electrolytic process.
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Hystory of Niobium |
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- Discoverer: Charles Hatchet
- Discovery Location: England
- Discovery Year: 1801
- Name Origin: Niobe was daughter of the mythical Greek king Tantalus.
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