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Niobium by: Calvin Padgett

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Advanced engineering systems such as those used in the Gemini space program. ... Symbol: The name niobium (Nb) was officially adopted by the International Union ... – PowerPoint PPT presentation

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Title: Niobium by: Calvin Padgett


1
Niobium by Calvin Padgett
  • The Name Niobium
  • The Symbol Nb
  • Its Atomic number 41
  • Its Atomic weight 92.90638 (2)

2
Niobium Properties Uses
  • PROPERTIES
  • Melting Point 2468.0 C (2741.15 K, 4474.4 F)
  • Boiling Point 4927.0 C (5200.15 K, 8900.6 F)
  • Number of Protons/Electrons 41
  • Number of Neutrons 52
  • Classification Transition Metal
  • Crystal Structure Cubic
  • Density _at_ 293 K 8.57 g/cm3
  • Color white
  • USES
  • Pipeline construction.
  • Nuclear industries.
  • Advanced engineering systems such as those used
    in the Gemini space program.
  • Some magnets contain niobium.
  • Cutting tools

41 Nb92.90638(2
3
Niobium - Facts
  • Name Derived from the Greek mythological
    character "Niobe", who was the daughter of
    Tantalus.
  • Symbol The name niobium (Nb) was officially
    adopted by the International Union of Pure and
    Applied Chemistry (IUPAC) in 1949.
  • Earth Location Widely distributed in nature it
    is about one and a half times as abundant as
    lead.
  • History Discovered in 1801 by Charles Hatchett
    in an ore called columbite sent to England in the
    1750s by John Winthrop, the first governor of
    Connecticut, USA. Hatchett called the new element
    columbium.

4
Niobium
Atomic weight
92.90638 (2)
Symbol Nb
USES
Countrys with Niobium
  • PROPERTIES

Atomic number 41
Africa
Some magnets
white
Protons/Electrons 41
  • Neutrons 52

Pipeline construction.
5
Niobium Web Sources
  • http//www.chemicalelements.com/
  • http//www.webelements.com/webelements/scholar/ele
    ments/niobium/index.html
  • http//www.nndc.bnl.gov/content/elements.html
  • http//www.answers.com/topic/niobium
  • http//www.nationmaster.com/graph-T/geo_nat_res
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