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- Name: Lithium
- Symbol: Li
- Atomic Number: 3
- Atomic Weight: 6.941 u
- Period: 2
- Group: 1
25 Lithium Facts for Kids
- Lithium is a chemical element on the periodic table.
- Lithium was discovered in 1817 by Swedish chemist Johan August Arfwedson.
- Lithium was first isolated in 1821 by English chemist William Thomas Brande via electrolysis of lithium oxide.
- Lithium is a soft alkali metal that has a silvery-white appearance.
- Lithium is a solid at room temperature.
- The symbol for lithium is Li.
- The atomic number for lithium is 3.
- The standard atomic weight for lithium is 6.941 u.
- Lithium is in the alkali metal element category on the periodic table.
- Lithium is a period 2 chemical element, which is the second row on the periodic table.
- Lithium is a group 1 chemical element, which is the lithium group.
- Lithium has two stable isotopes.
- The two stable lithium isotopes are 6Li and 7Li.
- The melting point for lithium is 356.90 °F (180.50 °C).
- The boiling point for lithium is 2,426 °F (1,330 °C).
- Lithium is the lightest metal on the periodic table.
- Lithium is the lightest solid element on the periodic table.
- Lithium is believed to be one of three chemical elements created during the Big Bang.
- Trace amounts of lithium are found in several different living organisms, but its role is unknown.
- The lithium compound lithium hydride is used in the fusion stage of a thermonuclear bomb.
- The lithium compound lithium oxide is used as a chemical cleaning agent when processing silica.
- Lithium is used to create batteries, like lithium batteries and lithium-ion batteries.
- Lithium is used to create lithium grease, which is the third most common grease used worldwide.
- Lithium compounds produce a bright red flame and are used to create fireworks, flares and other types of pyrotechnics.
- Lithium salts are used by doctors to treat people with bipolar disorder.
Additional Resources on Lithium
- Lithium – Learn more about the chemical element lithium on the U.S. National Library of Medicine website.
- Lithium (Li) – Discover more facts about lithium on the Royal Society of Chemistry website.
- Lithium (Chemical Element) – Read more about the chemical element lithium on the Britannica website.
- Lithium – Wikipedia – Find more facts about lithium and its history on the Wikipedia website.