Name: Gallium Symbol: Ga Atomic number: 31 Atomic weight: 69.723 (1) Standard state: solid at 298 K (but melts only slightly above this temperature) CAS Registry ID: 7440-55-3 Ultra-pure gallium has a beautiful, silvery appearance, and the solid metal exhibits a conchoidal fracture similar to glass. The metal expands on solidifying; therefore, it should not be stored in glass or metal containers, as they may break as the metal solidifies.
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Ultra-pure gallium has a beautiful, silvery appearance, and the solid metal exhibits a conchoidal fracture similar to glass. The metal expands on solidifying; therefore, it should not be stored in glass or metal containers, as they may break as the metal solidifies.

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