What is rubidium and sulfur formula?

Rubidium is a chemical element with the symbol Rb and atomic number 37. It is a soft, silvery-white metal that belongs to the alkali metal group of elements. Rubidium is highly reactive and easily oxidizes in air, making it a dangerous fire hazard. It was discovered by Robert Bunsen and Gustav Kirchhoff in 1861.

Sulfur, on the other hand, is a chemical element with the symbol S and atomic number 16. It is a non-metal that exists in various allotropic forms, including a bright yellow crystalline solid and a pale yellow powder. Sulfur is an important element in many industrial processes, such as the production of sulfuric acid and fertilizers. It was known to ancient civilizations and was called "brimstone" in the Bible.

The formula for rubidium sulfide is Rb2S, which indicates that it is composed of two atoms of rubidium and one atom of sulfur. Rubidium sulfide is a black crystalline compound that is used in electronics applications, such as making thermoelectric generators and inorganic scintillators.