Search results
Results From The WOW.Com Content Network
20900 (5.789 × 10 20 kg) 12.1 – 13.6: 10.5 – 11.7: 2020: SMM [32] [g] [z] 20: Ca: Calcium: 1.54: 41500 (1.15 × 10 21 kg) 2.21 – 2.35: 3.41 – 3.63: 2020: SMM [33] [g] [aa] 21: Sc: Scandium: 2.989: 22 (6.094 × 10 17 kg) 3460: 10 300: 2020: ISE 2020 [34] [ab] [ac] 22: Ti: Titanium: 4.54: 5650 (1.565 × 10 20 kg) 11.1 – 11.7: 50.5 ...
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 that is found as a trace element in alloys, mostly in platinum ores. Osmium is the densest naturally occurring element.
Osmium(II) iodide is a black solid [35] produced by the reaction of osmium tetroxide and hydroiodic acid at 250 °C in nitrogen: [34] OsO 4 + HI → OsI 2 + H 2 O. This compound decomposes in contact with water. [35] Osmium(III) iodide is a black solid that is produced by heating hexaiodoosmic acid (H 2 OsI 6). [34] This compound is insoluble ...
Pakistan Mercantile Exchange, formerly known as National Commodity Exchange Limited is a futures commodity exchange based in Karachi, Pakistan. It is the only company in Pakistan to provide a centralised and regulated place for commodity futures trading and is regulated by Securities and Exchange Commission of Pakistan (SECP). It began its full ...
252.18 g·mol −1 Appearance black crystals ... Osmium diphosphide is a binary inorganic compound of osmium metal and ... This page was last edited on 9 September ...
Osmium (76 Os) has seven naturally occurring isotopes, five of which are stable: 187 Os, 188 Os, 189 Os, 190 Os, and (most abundant) 192 Os. The other natural isotopes, 184 Os, and 186 Os, have extremely long half-life (1.12×10 13 years and 2×10 15 years, respectively) and for practical purposes can be considered to be stable as well.
Osmium(V) chloride (osmium pentachloride), OsCl 5 This page was last edited on 12 July 2024, at ... This page was last edited on 12 July 2024, at 04:14 (UTC).
Northern and western regions of Pakistan are rich in high quality gemstones. ... This page was last edited on 14 December 2024, at 18:12 (UTC).