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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, li, or LI may refer to: Leadership Institute, a non-profit organization located in Arlington, Virginia, US, that teaches "political technology." Long Island, New York is the most common application for the …

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It was first isolated by William Thomas Brande and Sir Humphrey Davy through the electrolysis of lithium oxide (Li 2 O). Today, larger amounts of the metal are obtained through the electrolysis of lithium …

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

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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