Name:
Gallium
Symbol:
Ga
Atomic Number:
31
Atomic Mass:
69.72
Atomic Volume:
11.80 cc/mol
Discovered By:
Lecoq de Boisbaudran
Discovery Date:
1875
Origin of Name:
Gallium - (Latin) Gallia (France)
Toxicity:
Hardly toxic. Compounds (especially soluble compounds) are toxic; they surpass mercury and arsenic in toxicity.
Summary:
Predicted by Mendeleev using his Periodic Table and named "ekaaluminum". Gallium is liquid just above room temperature (melting point 29.78 °C). Gallium expands by more than 3% on freezing. Gallium Arsenide is an important semiconductor material.
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