Niobio.carlos ruiz rubio 3 b

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Niobio.carlos ruiz rubio 3 b

  1. 1. 41Niobio – NiobiumMass: 92.91 u1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d3Melting point: 2750 KBoiling point: 5017 KDensity: 8.5 g/cm3Discovery: C. Hatchett (1801)It is a soft, grey, ductile transition metal, which is often found inthe pyrochlore mineral, the main commercial source for niobium, andcolumbite. The name comes from greek mithology; Niobe. It was notuntil the early 20th century that niobium was first used commercially.

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