LITHIUM

Lithium

Lithium is a chemical element with symbol Li and atomic number 3. It is a soft, silver-white metal belonging to the alkali metal group of chemical elements. Under standard conditions it is the lightest metal and the least dense solid element. Like all alkali metals, lithium is highly reactive and flammable. For this reason, it is typically stored in mineral oil. When cut open, lithium exhibits a metallic luster, but contact with moist air corrodes the surface quickly to a dull silvery gray, then black tarnish. Because of its high reactivity, lithium never occurs freely in nature, and instead, only appears in compounds, which are usually ionic.

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lithium

Noun

  1. The simplest alkali metal, the lightest solid element, and the third lightest chemical element (symbol Li) with an atomic number of 3.
  2. Lithium carbonate or other preparations of lithium metal used to treat manic depression and bipolar disorders.
  3. A lithium battery.


The above text is a snippet from Wiktionary: lithium
and as such is available under the Creative Commons Attribution/Share-Alike License.

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