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Osmium (from Ancient Greek ὀσμή (osmḗ) 'smell') is a chemical element; it has symbol Os and atomic number 76. It is a hard, brittle, bluish-white transition metal in the platinum group. It was discovered in 1803 by Smithson Tennant, who named it for the characteristic smell of its volatile oxide. Osmium has the highest density of any stable element and…
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platinum metals iridium metal oxidation os nickel volatile copper used stable states tetroxide element group residue platinum-group applications oso4 production
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Osmium | 184Os | 0.02% | 1.00 | infobox |
| Osmium | 185Os | synth | 1.00 | infobox |
| Osmium | 186Os | 1.59% | 1.00 | infobox |
| Osmium | 187Os | 1.96% | 1.00 | infobox |
| Osmium | 188Os | 13.2% | 1.00 | infobox |
| Osmium | 189Os | 16.1% | 1.00 | infobox |
| Osmium | 190Os | 26.3% | 1.00 | infobox |
| Osmium | 191Os | synth | 1.00 | infobox |
| Osmium | 192Os | 40.8% | 1.00 | infobox |
| Osmium | 193Os | synth | 1.00 | infobox |
| Osmium | 194Os | synth | 1.00 | infobox |
| Osmium | Appearance | silvery, blue cast | 1.00 | infobox |
| Osmium | at T (K) | 3160 | 1.00 | infobox |
| Osmium | Atomic number (Z) | 76 | 1.00 | infobox |
| Osmium | Atomic radius | empirical: 135 pm | 1.00 | infobox |
| Osmium | Block | d-block | 1.00 | infobox |
| Osmium | Boiling point | 5281 K (5008 °C, 9046 °F) | 1.00 | infobox |
| Osmium | Brinell hardness | 3920 MPa | 1.00 | infobox |
| Osmium | Bulk modulus | 462 GPa | 1.00 | infobox |
| Osmium | CAS Number | 7440-04-2 | 1.00 | infobox |
| Osmium | Covalent radius | 144±4 pm | 1.00 | infobox |
| Osmium | Crystal structure | hexagonal close-packed (hcp) (hP2) | 1.00 | infobox |
| Osmium | Density (at 20° C) | 22.587 g/cm3 | 1.00 | infobox |
| Osmium | Discovery and first isolation | Smithson Tennant (1803) | 1.00 | infobox |
| Osmium | Electrical resistivity | 81.2 nΩ⋅m (at 0 °C) | 1.00 | infobox |
| Osmium | Electron configuration | [Xe] 4f14 5d6 6s2 | 1.00 | infobox |
| Osmium | Electronegativity | Pauling scale: 2.2 | 1.00 | infobox |
| Osmium | Electrons per shell | 2, 8, 18, 32, 14, 2 | 1.00 | infobox |
| Osmium | Group | group 8 | 1.00 | infobox |
| Osmium | Heat of fusion | 57.851 kJ/mol (at m.p.) | 1.00 | infobox |
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