FratFiles

• Save Paper

Gallium


1871 Dmitrii Ivanovich Mendelev predicts the existence
and properties of the
element after zinc in the periodic table. He Gives it the name "eka aluminium".

1875 Paul Emile Lecoq de Boisbaudran discovers gallium. Its properties closely
match those predicted by Mendelev.


Gallium, atomic number 31, is very similar to aluminum in its chemical
properties. 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. 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......

View the rest of this paper...

Approximate Word Count: 469
Approximate Pages: 2 (250 words per double-spaced page)

Similar Essays

1. Gallium
   

   Gallium Gallium 1871 Dmitrii Ivanovich Mendelev predicts the existence and properties of the element after zinc in the periodic table. He Gives it the name "eka aluminium". 1875

2. Axt Case Study And It's Deadly Effects
   

   the community stepped in to aid the victims. AXT specialized in producing crystals of gallium arsenide, a compound semiconductor whose properties have special applications and are

3. Applications Of Silicon
   

   optical, thermal and electrical properties. Hyperpure silicon can be doped with boron, gallium, phosphorus, or arsenic to produce silicon for use in transistors, solar cells,

4. Ferrofluidics
   

   generation ‘Six-Four-Two' puller and into other new undeveloped pullers such as the gallium arsenide puller. This fade of interest due to reliability problems and quality

5. Quantum Mechanics
   

   lines. Later, Kirchhoff and Bunsen found many other new elements such as: indium, gallium, scandium, germanium, and thallium. Norman Lockyer, who was an astronomer, used a