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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 . 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 ....
Word count: 487 - Page count: 2
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