👉 Hahnium is a chemical element with the symbol H and atomic number 140. It was discovered by Hans Hahn in 1935, and it has been extensively studied for its unique properties and applications. The name "hahnium" comes from the German word "hahn", which means "white". The element is primarily found in the Earth's crust as a rare earth mineral, but it can also be produced through nuclear reprocessing of uranium ores. Hahn
