![]() Iridium’s Use in Today’s World The Element Iridium & Dinosaurs? Additionally, the element has an electronegativity of 2.2 on the Pauling scale. It has an electron configuration of 6s 25d 7. The element iridium is the twenty-sixth element in the transition metals. The elements rhodium and meitnerium are above and below iridium. It is located in the d-block of the periodic table, between osmium and platinum. Iridium has the atomic symbol Ir with an atomic number of 77. ![]() The ballpoint of pens are sometimes produced with alloys of osmium and the element iridium.The standard kilogram was created from measuring an alloy that was 90% platinum and 10% iridium.Iridium is found in space more often than on Earth.Three tons of iridium are produced annually.The element iridium is the 5th most expensive element in the world.Some scientists believe that the reason that iridium is scarce in the Earth’s crust because due to its density, it sunk to the Earth’s core when it was molten.Thus, iridium is sometimes referred to as a “noble metal”. Due to this characteristic, its name comes from the Latin word for rainbow, Iris. Iridium has the second highest density of all the elements on the periodic table.The element iridium is the most corrosion resistant material that we know of!.The element has actually led to development of one of the main theories on the extinction of the dinosaurs. Most people know of the element iridium from the game Stardew Valley where you can create various precious products out of iridium. Iridium is also a good conductor of electricity. It’s a silvery metal that is quite brittle and is used in alloys to create a harder material. The element iridium is an extremely rare metal.
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