Iridium - Wikipedia
WebIridium 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) as defined by experimental X-ray crystallography.
Iridium - Element information, properties and uses | Periodic Table
WebElement Iridium (Ir), Group 9, Atomic Number 77, d-block, Mass 192.217. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Iridium Satellite Communications | Your World. Our Network.
WebIridium is a global satellite communications company, providing access to voice and data services anywhere on Earth. With its constellation of satellites, Iridium’s network connects people and devices in the world’s most remote places — and close to home.
Iridium | Definition, Properties, & Uses | Britannica
WebApr 11, 2024 · 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 becomes ductile and can be worked at a white heat.
Facts About Iridium | Live Science
WebDec 2, 2016 · Iridium is the most corrosion-resistant element on the Periodic Table of Elements. It also has the highest density of all the elements. Because it resists corrosion, it is used to set standards...
Iridium Facts - Periodic Table of the Elements - ThoughtCo
WebJan 10, 2020 · Iridium has a melting point of 2410°C, a boiling point of 4130°C, a specific gravity of 22.42 (17°C), and valence of 3 or 4. A member of the platinum family, iridium is white like platinum, but with a slight yellowish cast. The metal is very hard and brittle and is the most corrosion-resistant metal known. Iridium is not attacked by acids or ...
Iridium | History, Uses, Facts, Physical & Chemical Characteristics
WebIridium 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 Element Facts - chemicool.com
WebIridium 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) …
Iridium - Wikiwand
WebIridium 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 with a density of 22.56 g/cm3 (0.815 lb/cu in) as defined by experimental X-ray crystallography. 191Ir and 193Ir are the only two ...
Iridium's impact | Nature Chemistry
WebMar 22, 2016 · It is one of the least abundant elements in the Earth's crust — about forty times less abundant than gold. It is thought to have sunk to the Earth's core during the formation of the planet, owing...
Skip to content