G completelyium Gallium 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 gallium. Its properties nigh match those predicted by Mendelev. Gallium, atomic number 31, is very identical to aluminium in its chemical properties. It does not dissolve in nitric acid because of the protective film of gallium oxide that is align over the surface by the action of the acid. Gallium does all the same dissolve in other acids, and alkalies.
Gallium was discovered (1875) by Paul Emile Lecoq de Boisbaudran, who observed its principal spectral lines while examining substantial seperated from zinc blende. Soon after he spaced the metal studied its properties, which coincided those that Dmitrii Ivanovich Mendelev had predicted a few years primitively for eka-aluminium, the and so undiscovered element lying between aluminum ...If you regard to get a full essay, order it on our website:
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