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Cobalt Presentation by Tori Cook


Tori Cook

on 6 June 2014

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Transcript of Cobalt Presentation by Tori Cook

Who found it? George Brandt from Sweden discovered cobalt in 1735. He realized that the blue color in glass was not from bismuth, which was commonly thought at the time, but from cobalt, a transition metal that can be used to give glass a bluish color. A chemist, he was the first one to discover a metal that was unknown in ancient times. Where is it? You can find cobalt in period 4, group 9. So, right here: What can we use it for? Why should I care? One of cobalt's isotopes is Cobalt-60, gamma rays from which are used to cure some forms of cancer. Other isotopes are: Sources http://education.jlab.org/itselemental/ele027.html by Tori Cook COBALT: the cool element 27
58.933195 and The average cobalt atom has 2 valence electrons, with 27 electrons total. So, it looks like this: http://www.epa.gov/radiation/radionuclides/cobalt.html#discovered and magnets
turbines for aircraft
cemented carbides
drying agents for ink and paint
stained glass tiles
enameled jewelry
preserving food The word "cobalt" comes from a middle-high German word that means "goblin". They thought that goblins put cobalt into the silver ore they mined. http://www.infobarrel.com/Interesting_Facts_About_Cobalt_Co and Co-56
Co-61 Cobalt Chloride is pink when dry but blue when it absorbs water. It's also in those little packets of stuff you're not supposed to eat that come in shoes and purses. http://www.green-planet-solar-energy.com/cobalt-the-element.html
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