The element was predicted with most of its properties, under the name ekaluminium, by the Russian chemist Mendelejeff, on the basis of the periodic law. This prediction was verified in its discovery by the french chemist Lecoq de Boisbaudran by its characteristic spectrum (two violet lines), in an examination of a zinc blende from the Pyrenees.
atomic weight: 69.9
Origin: NL, fr. L. Gallia France.