gallium

(Ga) Type: Term Pronunciation: gal′ē-ŭm Definitions: 1. A rare metal, atomic no. 31, atomic wt. 69.723.
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gallium

[n] - a rare silvery (usually trivalent) metallic element
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Gallium

One of four metals which can be liquid at room temperature, gallium has the longest liquid range of any metal (2175 °C). Below its melting point, it is a soft, silvery white metal which is stable in both air and water. Extraction of the element is achieved by electrolytic reduction in aqueous solution. Gallium is used in the semiconductor industry
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Gallium

Gallium: A rare metal with the atomic weight of 69. There are several isotopic forms of gallium that differ from it in atomic weight. One is gallium-68 which is produced by cyclotrons and emits gamma rays. The citrate form of gallium-68 is used as a radiotracer to locate sites of inflammation and tumor tissue within the body.
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Gallium

Gal'li·um noun [ New Latin , from Latin Gallia France.] (Chemistry) A rare metallic element, found in certain zinc ores. It is white, hard, and malleable, resembling aluminium, and remarkable for its low melting point (86° F., 30° C). Symbol Ga. Atomic weight 69.9. » The element wa
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Gallium

Gal'li·um noun [ New Latin ; perhaps from Latin Gallia France.] (Chemistry) A rare metallic element, found combined in certain zinc ores. It is white, hard, and malleable, resembling aluminium, and remarkable for its low melting point (86° F., 30° C.). Symbol, Ga ; at. wt., 69.9.
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gallium

<chemistry, element> A rare metallic element, found in certain zinc ores. It is white, hard, and malleable, resembling aluminium, and remarcable for its low melting point (86 F, 30C). ... The element was predicted with most of its properties, under the name ekaluminium, by the Russian chemist Mendelejeff, on the basis of the Periodic law. Thi
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gallium

(Ga) (gal´e-әm) a chemical element, atomic number 31, atomic weight 69.72. gallium 67 a radioisotope of gallium, atomic mass 67, having a half-life of 3.26 days; used in the imaging of tumors, especially of soft tissue, and sites of inflammation and a...
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Gallium

• (n.) A rare metallic element, found in certain zinc ores. It is white, hard, and malleable, resembling aluminium, and remarcable for its low melting point (86/ F., 30/C). Symbol Ga. Atomic weight 69.9. • (n.) A rare metallic element, found combined in certain zinc ores. It is white, hard, and malleable, resembling aluminium, and remarka
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gallium

(Ga), chemical element, metal of main Group IIIa, or boron group, of the periodic table. It liquefies just above room temperature.[3 related articles]
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Gallium

[disambiguation] Gallium is a chemical element. Gallium may also refer to: ...
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gallium

(Ga) Solid and liquid gallium. Credit: UCLA SPINLab A silvery-white metallic element of group IIIA of the period table, resembling aluminum. It is found as a trace element in bauxite, pyrite, sphalerite, and germanite. Gallium has such a low melting point that it will...
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gallium

gallium (găl'ēum) , metallic chemical element; symbol Ga; at. no. 31; at. wt. 69.72; m.p. 29.78°C; b.p. 2,403°C; sp. gr. 5.904 at 29.6°C (solid), 6.095 at 29.8°C (liquid); valence +2 or +3. Solid gallium is a blue-gray metal with orthorhombic crystalline structure. Th...
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Gallium

Gallium is a rare malleable metal element, discovered by spectrum analysis in 1875 by De Boisbaudran in the zinc-blende of Pierrefitte in the Pyrenees. It is of a greyish-white colour, has a brilliant lustre, and is fused by the mere warmth of the hand. In its properties it is related to aluminium.
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gallium

Grey metallic element, atomic number 31, relative atomic mass 69.72. It is liquid at room temperature. Gallium arsenide (GaAs) crystals are used for semiconductors in microelectronics, since electrons travel a thousand times faster through them than through silicon. The element was discovered in 1875 by Lecoq de Boisbaudran (1838–1912)
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Gallium

Gallium is a chemical element with symbol Ga and atomic number 31. Elemental gallium does not occur in free form in nature, but as the gallium(III) compounds that are in trace amounts in zinc ores and in bauxite. Gallium is a soft silvery metal, and elemental gallium is a brittle solid at low temperatures. If it is held in the human hand long enou
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