Part one of term paper
1871 Dmitrii Ivanovich Mendelev predicts the existance 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 . Its properties closely match those predicted by Mendelev. Gallium, atomic number 31, is very similar to aluminum in its chemical proper ...

Part two of term paper
... material seperated 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 widely distributed at the Earth's surface, gallium does not occor free or concentrated in independant minerals, except for gallite. It is extracted as a by-product from zinc blende, iron pyrites, bauxi ...