The compound with the formula Li2O is known as Lithium Oxide.
Lithium Oxide is formed when lithium, a metal, reacts with oxygen. It consists of lithium ions (Li+) and oxide ions (O2-). Each formula unit of Lithium Oxide contains two lithium ions for every one oxide ion, which is why we use the subscript ‘2’ for lithium in the formula. This compound is commonly used in various applications, including ceramics, batteries, and as a drying agent in organic synthesis.