Chemistry Lab Gallium

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by GlennTurner24
Last updated 3 years ago

Discipline:
Science
Subject:
Chemistry
Grade:
8

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Chemistry Lab Gallium

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Periodic TableGallium

Gallium was discovered by Paul-Emile Lecoq de Boisbaudran in 1875 at France.Name: galliumSymbol: GaAtomic number: 31Relative atomic mass (Ar): 69.723 (1)Standard state: solid at 298 K (but melts only slightly above this temperature)Colour: silvery whiteClassification: Metallic

Gallium is the only metal, except for mercury, caesium, and rubidium, which can be liquid near room temperatures; this makes possible its use in high-temperature thermometers..

Ultra-pure gallium has a beautiful, silvery appearance, and the solid metal exhibits a conchoidal fracture similar to glass. Low melting gallium alloys are used in some medical thermometers as non-toxic substitutes for mercury. Gallium arsenide is used in semiconductor production mainly for laser diodes, light-emitting diodes and solar panels.

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