Iridium compounds: Iridium compounds are compounds containing the element iridium (Ir). Iridium forms compounds in oxidation states between −3 and +9, but the most common oxidation states are +1, +3, and +4. (Chemistry) [100%] 2023-12-20 [Iridium] [Iridium compounds]...
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Iridium: Iridium is a chemical element with the symbol Ir and atomic number 77. A very hard, brittle, silvery-white transition metal of the platinum group, iridium is considered to be the second-densest naturally occurring metal (after osmium) with a ... (chemical element with atomic number 77) [74%] 2021-12-23 [Iridium] [Chemical elements]...
Iridium: Iridium is an element in the transition metals class of the periodic table. It is hard and lustrous, and is perhaps the most corrosion-resistant metal known. [74%] 2023-02-26 [Elements] [Metals]...
Iridium: Iridium, one of the metals of the platinum group, discovered in 1802 by Smithson Tennant during the examination of the residue left when platinum ores are dissolved in aqua regia; the element occurs in platinum ores in the form of ... [74%] 2022-09-02
Iridium: Iridium is a metallic element. It is a dense, very hard, brittle, silvery-white transition metal of the platinum group. [74%] 2023-01-30
Iridium: Iridium is a chemical element with the symbol Ir and atomic number 77. A very hard, brittle, silvery-white transition metal of the platinum group, iridium is considered to be the second-densest metal (after osmium) with a density of ... (Chemistry) [74%] 2023-08-26 [Iridium] [Chemical elements]...
Iridium: Iridium (chemical symbol Ir, atomic number 77) is a dense, hard, brittle, silvery-white transition metal of the platinum family. It occurs in natural alloys with platinum or osmium and is notable for being the most corrosion-resistant element known ... [74%] 2023-02-03
Iridium: Iridium es el nombre de una constelación de 66 satélites de comunicaciones que giran alrededor de la Tierra en 6 órbitas bajas LEO (Low Earth Orbit), a una altura aproximada de 780 km de la tierra. Cada una de las ... [74%] 2024-06-22
Isidium: An isidium is a vegetative reproductive structure present in some lichens. Isidia are outgrowths of the thallus surface, and are corticated (i.e., containing the outermost layer of the thallus), usually with a columnar structure, and consisting of both fungal ... (Terminology for morphology of a lichen reproductive structure) [64%] 2024-09-24 [Lichenology] [Fungal morphology and anatomy]...
Compound: A compound is a molecule which is composed of more than one element. Table salt, for example, is sodium chloride (NaCl), a compound composed of the elements sodium (Na) and chlorine (Cl) in a 1:1 ratio. [58%] 2023-02-18 [Chemistry]
Compound: Compound, a combination of various elements, substances or ingredients, so as to form one composite whole. A “chemical compound” is a substance which can be resolved into simple constituents, as opposed to an element which cannot be so resolved (see ... [58%] 2022-09-02
Compound: Articles Most recent articles on Compound Most cited articles on Compound Review articles on Compound Articles on Compound in N Eng J Med, Lancet, BMJ Media Powerpoint slides on Compound Images of Compound Photos of Compound Podcasts & MP3s on Compound ... [58%] 2023-11-26
Compound (linguistics): This original article is about compounds in linguistics. Its aim is to provide properly sourced information about compounds, in part to support their treatment in dictionaries. (Linguistics) [58%] 2024-01-02 [Linguistics]
Compound (linguistics): In linguistics, a compound is a lexeme (less precisely, a word or sign) that consists of more than one stem. Compounding, composition or nominal composition is the process of word formation that creates compound lexemes. (Linguistics) [58%] 2024-01-02 [Syntax] [Word coinage]...
Chemical compound#Catalogs#Organic compounds: This page aims to list well-known organic compounds, including organometallic compounds. Note that purely inorganic compounds, minerals, and chemical elements are not included. [55%] 2024-08-23
Iminium: An iminium salt or cation in organic chemistry has the general structure [RRC=NRR] and is as such a protonated or substituted imine . It is an intermediate in many organic reactions such as the Beckmann rearrangement, Vilsmeier-Haack reaction, Stephen ... [53%] 2023-12-13
Iridium trihydride: Iridium trihydride (IrH3) is a chemical compound of iridium and hydrogen that can be formed under high pressure. The crystalline form has a distorted simple cubic structure. (Chemistry) [52%] 2023-05-29 [Iridium compounds] [Hydrides]...
Iridium 7: Iridium 7 was a United States Iridium communications satellite. It was launched into low Earth orbit from Vandenberg Air Force Base at 14:55 GMT on 5 May 1997, by a Delta II 7920-10C carrier rocket. (Engineering) [52%] 2022-05-27 [Iridium satellites]
Iridium tetroxide: Iridium tetroxide (IrO4, Iridium(VIII) oxide) is a binary compound of oxygen and iridium in oxidation state +8. This compound was formed by photochemical rearrangement of [(η-O2)IrO2] in solid argon at a temperature of 6 K (−267.15 °C ... (Chemistry) [52%] 2022-08-16 [Iridium compounds] [Transition metal oxides]...