A portrait of osmium is available on the Visual Elements site. Up to 200 individual items of information on this element are available in The Elements.
| Os | Osmium |
Atomic number : 76
Relative atomic mass (12C = 12.0000) : 190.23 |
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| P H Y S I C A L D A T A | |
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Group 8 transition metal Density / kg m-3 : 22 590 [293 K]; 20 100 [liquid at m.p.] |
Melting point / K : 3327 Boiling point / K : 5300 |
| D I S C O V E R Y | |
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Discovered in 1803 by S. Tennant at London, England. |
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| G E O L O G I C A L D A T A | |
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Abundances Sun (relative to H = 1 × 1012) : 5 Earth's crust / p.p.m. : c. 1 × 10-4 |
Seawater / p.p.m. : n.a., but minute |
| B I O L O G I C A L D A T A | |
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Level in humans Organs: n.a., but low |
Daily dietary intake : n.a. Total mass of element in average (70 kg) person : n.a., but very low |
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A portrait of osmium is available on the Visual Elements site. Up to 200 individual items of information on this element are available in The Elements. |