Iridium - Element information, properties and uses | Periodic Table
Element Iridium (Ir), Group 9, Atomic Number 77, d-block, Mass 192.217. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Iridium - Wikipedia
Iridium is a chemical element; it has symbol Ir and atomic number 77. A very hard, brittle, silvery-white transition metal of the platinum group, it is considered the second-densest naturally occurring metal (after osmium) with a density of 22.56 g/cm 3 (0.815 lb/cu in) [9] as defined by experimental X-ray crystallography.
Iridium - Periodic Table
Iridium is a whitish silver transition metal. It is brittle solid at standard temperature and pressure. It is a significantly dense metal and is considered as the 2 nd densest element (22.56 g/cm 3). Iridium is considered as the most corrosion-resistant metal and does not react with water or oxygen even at high temperatures [3].
Iridium (Ir) - Periodic Table
Iridium is the 77th element in the periodic table and has a symbol of Ir and atomic number of 77. It has an atomic weight of 192.217 and a mass number of 193. Iridium has seventy-seven protons and one hundred sixteen neutrons in its nucleus, and seventy-seven electrons in six shells.
Iridium | Ir (Element) - PubChem
Periodic Table element Summary Iridium. Iridium is a chemical element with symbol Ir and atomic number 77. Classified as a transition metal, Iridium is a solid at room temperature.
Iridium | Definition, Properties, & Uses | Britannica
2024年9月28日 · Iridium, chemical element, one of the platinum metals of Groups 8–10 (VIIIb), Periods 5 and 6, of the periodic table. It is very dense and rare and is used in platinum alloys. A precious, silver-white metal, iridium is hard and brittle, but it …
WebElements Periodic Table » Iridium » the essentials
Iridium is white, similar to platinum, but with a slight yellowish cast. It is very hard and brittle, making it very hard to machine, form, or work. It is the most corrosion resistant metal known, and was used in making the standard metre bar of Paris, which is a 90% platinum-10% iridium alloy.
Iridium Element Facts - chemicool.com
Iridium is a rare, hard, lustrous, brittle, very dense platinum-like metal. Chemically it is very unreactive. It is the most corrosion-resistant metal known and it resists attack by any acid. Iridium is attacked by molten salts such as sodium chloride (NaCl) and sodium cyanide (NaCN).
Iridium - Periodic Table
Iridium - Properties, history, name origin, facts, applications, isotopes, electronic configuation, crystal structure, hazards and more; Interactive periodic table of the chemical elements.
Iridium (Ir) - Periodic Table
Iridium is a chemical element of the periodic table with chemical symbol Ir and atomic number 77 with an atomic weight of 192.217 u and is classed as transition metal and is part of group 9 (cobalt group). Iridium is solid at room temperature.