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Lithium (from Ancient Greek: λίθος, líthos, 'stone') is a chemical element; it has symbol Li and atomic number 3. It is a soft, silvery-white alkali metal. Under standard conditions, it is the least dense metal …

LI definition: link; links. See examples of li used in a sentence.

li in American English (li) noun (in Chinese ethical philosophy) the etiquette traditionally prescribed for individuals or groups of people in a given situation

The meaning of LI is lithium.

Li (li) n., pl. Lis, (esp. collectively) Li. 1. a member of a people living on the island of Hainan in S China. 2. the language of the Li.

Looking for the definition of LI? Find out what is the full meaning of LI on Abbreviations.com! 'Long Island' is one option -- get in to view more @ The Web's largest and most authoritative acronyms and …

LI commonly refers to Lithium, a chemical element with the symbol Li and atomic number 3, known for its use in batteries and mood-stabilizing medications. It can also pertain to fields such as Chemistry …

Feb 27, 2026 · lithium (Li), chemical element of Group 1 (Ia) in the periodic table, the alkali metal group, lightest of the solid elements. The metal itself—which is soft, white, and lustrous—and several of its …

Periodic Table Lithium Lithium is a chemical element with symbol Li and atomic number 3. Classified as a n alkali metal, Lithium is a solid at 25°C (room temperature).