How Do We Get It? - Rubidium. Rubidium: The Versatile Element with an Elusive Origin. Rubidium, a silvery-white alkali metal, holds a unique place in the periodic table. With an atomic number of 37, it is not as well-known as its popular siblings, sodium and potassium. Discovered in 1861 by Robert Bunsen and Gustav Kirchhoff, this element's origin and properties have fascinated scientists for decades.
Published on April 12, 2025 23:51