Gallium

Essay specific features

 

Issue:

Science

 

Written by:

Brett M

 

Date added:

March 8, 2012

 

Level:

University

 

Grade:

A

 

No of pages / words:

2 / 506

 

Was viewed:

4717 times

 

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Essay content:

It does not dissolve in nitric acid because of the protective film of gallium oxide that is formed over the surface by the action of the acid. Gallium does however dissolve in other acids, and alkalies. Gallium was discovered (1875) by Paul Emile Lecoq de Boisbaudran, who observed its principal spectral lines while examining material separated from zinc blende...
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Soon after he isolated the metal studied its properties, which coincided those that Dmitrii Ivanovich Mendelev had predicted a few years earlier for eka-aluminium, the then undiscovered element lying between aluminum and indium in his periodic table. Though widely distributed at the Earth's surface, gallium does not occor free or concentrated in independent minerals, except for gallite...
displayed 300 characters

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