boron group element atom gallium atom 0 31Ga 68.92557 69.72300 A metallic element predicted as eka-aluminium by Mendeleev in 1870 and discovered by Paul-Emile Lecoq de Boisbaudran in 1875. Named in honour of France (Latin Gallia) and perhaps also from the Latin gallus cock, a translation of Lecoq. CAS:7440-55-3 CHEBI:33326 CHEBI:49630 CHEBI:49631 GYHNNYVSQQEPJS-UHFFFAOYSA-N Ga Ga InChI=1S/Ga WebElements:Ga [Ga] chebi_ontology gallium 镓 galio gallio galio Gallium gallium gallium