osmium
chemical element with symbol Os and atomic number 76
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Summary
osmium is a chemical element[1]. osmium draws 12,353 Wikipedia views per month (chemical element category, ranking #44 of 144).[2]
Key Facts
- Discoverer or inventor: Smithson Tennant[3], William Hyde Wollaston[4]
- Named after: odor[5]
- Canonical SMILES: [Os][6]
- Element symbol: Os[7]
- Chemical formula: Os[8]
- Subclass of: platinum group[9], heavy metal[10], d-block[11]
- Part of: period 6[12], group 8[13], transition metal[14]
- Commons category: Osmium[15]
- Unicode character: 鋨[16]
- Crystal system: hexagonal crystal system[17]
- Time of discovery or invention: 1804[18]
- Point group: dihexagonal-dipyramidal[19]
- Space group: space group P6₃/mmc[20]
- IPA transcription: ˈɒzmiəm[21]
- Topic's main category: Category:Osmium[22]
- Commons gallery: Osmium[23]
- Atomic number: 76[24]
- Mohs' hardness: 7.0[25]
- Electronegativity: 2.2[26]
- Oxidation state: 2[27], 8[28], 6[29], 4[30], 3[31], -4[32], -2[33], -1[34], 0[35], 1[36], 5[37], 7[38]
- Described by source: Armenian Soviet Encyclopedia[39], New Encyclopedic Dictionary[40], Brockhaus and Efron Encyclopedic Dictionary[41], Small Brockhaus and Efron Encyclopedic Dictionary[42], Encyclopaedia Hebraica[43], Otto's encyclopedia[44], Meyers Konversations-Lexikon, 4th edition (1885–1890)[45], Encyclopædia Britannica 11th edition[46]
- Has characteristic: paramagnetism[47]
- Density: 22359.7 kilogram per cubic metre[48]
- Electrical conductivity: 10900000.0 siemens per metre[49]
- Specific heat capacity: 130.0 joule per kilogram kelvin[50]
Body
Influence
Things named for osmium include rutheniridosmine[51], a mineral species[52].
Why It Matters
osmium has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[53] osmium is known by 47 alternative names across languages and contexts.[54]
Entities named for osmium include rutheniridosmine[51], a mineral species[52].