| Ga | Gallium | Atomic number : 31 Relative atomic mass (12C = 12.0000) : 69.723 |
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| P H Y S I C A L D A T A | |
| Group 13 metal Density / kg m-3 : 5907 [293 K]; 6113.6 [liquid at m.p.] |
Melting point / K : 302.93 Boiling point / K : 2676 |
| D I S C O V E R Y | |
| Discovered in 1875 by Paul-Émile Lecoq de Boisbaudran at Paris, France. |
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| G E O L O G I C A L D A T A | |
| Abundances Sun (relative to H = 1 × 1012) : 631 Earth's crust / p.p.m. : 18 Residence time / years : 10 000 Classification : n.a. Oxidation state : III |
Seawater / p.p.m. : 3 × 10-5 |
| B I O L O G I C A L D A T A | |
| Level in humans Blood / mg dm-3 : < 0.08 Bone / p.p.m. : n.a. Liver / p.p.m. : 0.0025 Muscle / p.p.m. : 0.0014 |
Daily dietary intake : n.a., but low Total mass of element in average (70 kg) person : < 0.7 mg |
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A portrait of gallium is available on the Visual Elements site. Up to 200 individual items of information on this element are available in The Elements. |