| Au | Gold | Atomic number : 79 Relative atomic mass (12C = 12.0000) : 196.96654 |
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| P H Y S I C A L D A T A | |
| Group 11 transition metal Density / kg m-3 : 19 320 [293 K]; 17 280 [liquid at m.p.] |
Melting point / K : 1337.58 Boiling point / K : 3080 |
| D I S C O V E R Y | |
| Known to ancient civilizations. |
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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) : 5.6 Earth's crust / p.p.m. : 0.0011 Residence time / years : n.a. Classification : n.a. Oxidation state : I |
Seawater / p.p.m. : 1 × 10-5 |
| B I O L O G I C A L D A T A | |
| Level in humans Blood / mg dm-3 : (0.1 - 4.2) × 10-4 Bone / p.p.m. : 0.016 Liver / p.p.m. : 0.0004 Muscle / p.p.m. : n.a. |
Daily dietary intake : n.a., but very low Total mass of element in average (70 kg) person : 0.2 mg |
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A portrait of gold is available on the Visual Elements site. Up to 200 individual items of information on this element are available in The Elements. |