By: Alexis Paxton Mr. Manning 31 Ga Gallium

Gallium wets glass or porcelain, and forms a brilliant mirror when it is painted on glass Used for doping semiconductors and producing solid-state devices such as transistors Gallium arsenide converts electricity into coherent light Alloying 90 tons of gallium (2 or 3 years of world production) is used to detect solar neutrinos by the use of the reaction: nu + 71Ga > 71Ge + e-. The rate, although very low (less than 1 interaction per day in 30 tonnes of Ga) makes gallium unique for this purpose. Two experiments are running : - GALLEX using 30 tons in the Gran Sasso underground laboratory (Italy) and SAGE with 60 tons in the Baksan laboratory in Caucasus (Russia). [thanks Michel] Melting Point: °C ( K, °F) Boiling Point: °C ( K, °F) Number of Protons/Electrons: 31 Number of Neutrons: K: g/cm3 Color: White/Silver

Date of Discovery: 1875 Discoverer: Paul Emile Lecoq de Boisbaudran Name Origin: From the Latin word Gallia, the old name of France Uses: semiconductor production Obtained From: bauxite, germanite, coal

Gallium poem! Gallium was discpvered in 1875 Gallium was discpvered in 1875 By Paul Emily Lecoq De Boisbaudran. By Paul Emily Lecoq De Boisbaudran. Gallium has alloying that it contains. Gallium has alloying that it contains. Its symbol is GA Its symbol is GA And is used to wet glass and is brillant mirror when painted on glass!! And is used to wet glass and is brillant mirror when painted on glass!!

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