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Rhenium

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Fifth Energy Level: 13. Sixth Energy Level: 2. http://www.parkridge.k12.nj.us/atkins ... and element 43 were the only two elements of the main periodic table that had ... – PowerPoint PPT presentation

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Title: Rhenium


1
Rhenium
  • A.B.
  • November 21, 2009

2
Phun Phacts
  • Date of Discovery 1925 Discoverer Walter
    Noddack,Ida Tacke, Otto Berg
  • Name Origin From Rhines provinces of Germany
  • http//www.parkridge.k12.nj.us/atkins/

3
Significant Stats
  • Name Rhenium Symbol Re Atomic Number 75
    Atomic Mass 186.207 amu Number of
    Protons/Electrons 75 Number of Neutrons 111
    Classification Transition Metal Color
    Silverish
  • http//www.parkridge.k12.nj.us/atkins/

4
Influx of Info
  • Rhenium is a very dense, high-melting,
    silver-white metal.
  • In the United States rhenium is obtained
    commercially as a byproduct of the roasting of
    copper sulfide ores from Arizona and Utah.
  • http//www.encyclopedia.com/html/r/rhenium.asp
  • Number of Energy Levels 6
  • First Energy Level 2 Second Energy Level 8
    Third Energy Level 18 Fourth Energy Level 32
    Fifth Energy Level 13 Sixth Energy Level 2
  • http//www.parkridge.k12.nj.us/atkins/


5
Unique Uses
  • Rhenium wire is used in photoflash lamps for
    photograph
  • Rhenium is also used as an electrical contact
    material because it has good wear resistance and
    withstands arc corrosion.
  • http//www.rhenium.com/Technical/ReInfo1.html

6
Distinct Data
  • Rhenium can also be used in medical applications.
  • Radioactive rhenium used in prevention and
    treatment.
  • It is also highly effective in the treatment of
    liver tumors.
  • http//www.rhenium.com/Technical/ReInfo1.html
  • Rhenium has many uses. One use is small rocket
    thrusters. These thrusters are used in outer
    space to position satellites and help them
    maintain a geo-stationary orbit.
  • It is scarce in the earths crust 0.7 parts per
    million. It is therefore quite expensive.


7
More Phabulous Phacts
  • In 1928 rhenium cost 10,000/g. The price today
    is about 250/troy oz.
  • Some sources for rhenium are Chile, Russia,
    Kazakhstan, Ukraine, and the southwestern United
    States.
  • http//pearl1.lanl.gov/periodic/elements/75.html

8
More Incredible Info
  • Because of its high melting point, rhenium is a
    refractory metal. In that classification, rhenium
    is unique.
  • It is the only refractory metal that does not
    form carbides.
  • http//www.rhenium.com/Technical/ReInfo1.html

9
Dynamic Data
  • Natural rhenium is a mixture of two stable
    isotopes. Twenty six other unstable isotopes are
    recognized.
  • http//pearl1.lanl.gov/periodic/elements/75.html
  • Rhenium also has a high modulus of elasticity.
    This means that structures made of rhenium will
    have very good stability and rigidity.
  • http//www.rhenium.com/Technical/ReInfo1.html

10
Phascinating Phacts
  • At the time rhenium was found,  element 75
    (rhenium) and element 43 were the only two
    elements of the main periodic table that had not
    yet been discovered. Element 75 was named 
    "rhenium" in honor of the Rhine River.
  • http//www.chemistry.pomona.edu/chemistry/periodic
    _table/elements/rhenium/history1.htm

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