Lithium
Properties, Use, & Facts
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 alloys and compounds are produced on an industrial scale.
| atomic number | 3 |
|---|---|
| atomic weight | 6.941 |
| melting point | 180.5 °C (356.9 °F) |
| boiling point | 1,342 °C (2,448 °F) |
| specific gravity | 0.534 at 20 °C (68 °F) |
| oxidation state | +1 |
| electron configuration | 2-1 or 1s22s1 |
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