|Group||5||Melting point||2410 °C|
|Period||5||Boiling point||5100 °C|
|Block||d||Density (g cm−3)||8.57|
|Atomic number||41||Relative atomic mass||92.906|
|State at 20°C||Solid||Key isotopes||93Nb|
|Electron configuration||[Kr] 4d4 5s1||CAS number||7440-03-1|
|ChemSpider ID||22378||ChemSpider is a free chemical structure database|
- Niobium is a chemical element with atomic number 41 and represented with the symbol Nb in the Periodic Table.
- It is a soft, ductile transition metal, which is resistant to corrosion due to the presence of oxide layer on its surface.
- It is one of the most common elements found in the Earth’s Crust. It is often found in the pyrochlore mineral.
- It is used in stainless steel alloys for cutting tools, nuclear reactors, jets, missiles, and welding rods.
- It is used in the manufacturing of MRI scanners and NMR equipment.
- Its alloys are used in making surgical implants.
- It is used for the production of stainless steel and high-temperature resistant alloys.
- At cryogenic temperatures, Niobium becomes a superconductor.
- Niobium and its compounds are toxic to some extent.
- When exposed to air at room temperature, metal takes on a bluish tinge for extended periods.
- Niobium comprises of one stable isotope in the Earth’s crust.
- In united states, the element was called columbium (symbol Cb) for about 100 years while it was called niobium in Europe.
- There are around 18 known isotopes of niobium.
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