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Honors Chemistry Element Project

Published on Nov 18, 2015

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1.

RE (RHENIUM)

  • Atomic number - 75 - Atomic mass - 186.207 u - Discovered by Walter and Ida Noddack
  • First discovered in Masataka Ogawa in 1908
  • Physical property - melting point 5767 degrees F
  • Nickel-based superalloys of rhenium are used in exaust nozzles of jet engines.
  • Rhenium is one of the most expensive metals. It is around $4575 per kilogram.
Photo by GrrlScientist
2.

TE (TELLURIUM)

  • Atomic number 52 - Atomic mass 127.60(3)
  • Discovered in 1782 by Franz-Joseph Müller von Reichenstein
  • Physical properties - Boils at 1810 degrees F
  • Commercially, the primary use of Tellurium is in alloys
  • Tellurium is chemically related to selenium and sulfur
Photo by Hypocentre
3.

CM (CURIUM)

  • Atomic number 96 - atomic mass (247)
  • Discovered in 1944 by Glenn T. Seaborg
  • Physical properties - Melts at 2444 degrees F
  • Curium is commonly used for artificial pacemakers.
  • Curiums isotopes are radioactive and have a small critical mass for a controlled nuclear chain reaction
Photo by dullhunk
4.

I (IODINE)

  • Atomic number 53 - Atomic mass 126.90447(3)
  • Discovered first by Bernard Courtois in 1811
  • Physical properties - Melts at 236.66 degrees F
  • Iodine is commonly used in nutrition, and industrially in the production of polymers
  • Iodines name originates from a Greek word meaning purple or violet
Photo by Wolfram Burner
5.

BE (BERYLLIUM)

  • Atomic number 4 - Atomic mass 9.0121831(5)
  • Discovered by Louis Nicolas Vauquelin in 1797
  • Physical properties - Boils at 5338 degrees F
  • Beryllium is commonly used for adding as an alloying element to iron and copper
  • Beryllium can be used in tools because it doesn't spark as easily.
Photo by wbaiv
6.

TM (THULIUM)

  • Atomic number 69 - atomic mass 168.93422(2)
  • Discovered by Per Teodor Cleve in 1879
  • Physical properties - Melts at 2813 degrees F
  • Thulium is used as the radiation source in portable x-ray devices and in solid state lasers
  • Thulium is an easily workable metal with a bright silvery-gray luster.
Photo by Destinys Agent
7.

ND (NEODYMIUM)

  • Atomic number 60 - Atomic mass 144.242
  • Discovered by Carl Auer von Welsbsch in 1885
  • Physical properties - Soft silver metal that melts at 1875 degrees F
  • Neodymium is used for glass dyes and other general uses
  • Neodymium is often a reddish-purple but changes with the type of lighting.
Photo by London Commodity Markets

Nathan Tucker