| Pt | Platinum | Atomic number : 78 Relative atomic mass (12C = 12.0000) : 195.08 |
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| P H Y S I C A L D A T A | |
| Group 10 transition metal Density / kg m-3 : 21 450 [293 K] |
Melting point / K : 2045 Boiling point / K : 4100 ± 100 |
| D I S C O V E R Y | |
| Known to pre-Columbian South Americans and taken to Europe about 1750. |
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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) : 56.2 Earth's crust / p.p.m. : c. 0.001 Residence time / years : n.a. Oxidation state : II |
Seawater / p.p.m. : Atlantic surface : n.a. Atlantic deep : n.a. Pacific surface : 1.1 × 10-7 Pacific deep : 2.7 × 10-7 |
| B I O L O G I C A L D A T A | |
| Level in humans Organs: n.a., but low |
Daily dietary intake : n.a. Total mass of element in average (70 kg) person : n.a. |
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A portrait of platinum is available on the Visual Elements site. Up to 200 individual items of information on this element are available in The Elements. |