Advanced materials

 Rhenium is a rare, silvery-white, metallic element with the atomic number 75 and the symbol Re. It is classified as a transition metal and is one of the densest elements known to exist. Rhenium was discovered in 1925 by the German chemists Ida Noddack, Walter Noddack, and Otto Berg. It is named after the Rhine River, where its discoverers were from. One of the most significant properties of Rhenium is its high melting and boiling points, which make it an ideal material for high-temperature applications. It has a melting point of 3186°C and a boiling point of 5596°C, making it one of the highest melting and boiling metals. Its high melting point means that it does not soften or deform easily at high temperatures, which makes it ideal for use in high-temperature superalloys and other high-performance materials. Rhenium is also a very dense metal, with a density of 21.02 g/cm³. This high density makes it useful in applications where weight is a critical factor, such as in aircraft and sp