boron group element atom gallium atom WebElements:Ga Ga chebi_ontology GYHNNYVSQQEPJS-UHFFFAOYSA-N 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. CHEBI:33326 gallium 69.72300 31Ga CHEBI:49630 CAS:7440-55-3 galio Ga 0 68.92557 gallium CHEBI:49631 [Ga] InChI=1S/Ga