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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 …

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 …

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.

The meaning of LI is lithium.

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

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

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 …

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).