₄₁Nb (Niobium)

Niobium was discovered in 1801 by Charles Hatchett in an ore called columbite sent to England in the 1750s by John Winthrop the Younger, the first goveror of Connecticut, USA. Hatchett called the new element columbium. He was not able to isolate the free element.

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Niobium, formerly columbium, is a chemical element with symbol Nb and atomic number 41. It is a soft, grey, ductile transition metal, often found in the minerals pyrochlore and columbite.

Atomic Weight:   92.90637

Density:   8.57 g/cm3

Melting Point:   2477 °C

Boiling Point:   4744 °C

Copyright Reserved 2018 by Christian Felix Alavazo