41

Mo

Molybdenum
92.90638 (2)
 Historical Information

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. .
Basic Information Shells
  • Name: Niobium
  • Symbol: Nb
  • Atomic number: 41
  • Atomic weight: 92.90638 (2)
  • Standard state: solid at 298 K
  • Group in periodic table: 5
  • Group name:none
  • Period in periodic table: 5
  • Block in periodic table: d-block
  • Classification: Metallic
 niobium
Uses Trivia
  • omponent of some stainless steels
  • alloys with nonferrous metals
  • pipeline construction

Niobium is a shiny, white, soft, and ductile metal, and takes on a bluish tinge when exposed to air at room temperatures for a long time. The metal starts to oxidize in air at high temperatures.