| Li | Lithium | Atomic number : 3 Relative atomic mass (12C = 12.0000) : 6.941 |
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| P H Y S I C A L D A T A | |
| Group 1 alkali metal Density / kg m-3 : 534 [293 K]; 515 [liquid at m.p.] |
Melting point / K : 453.69 Boiling point / K : 1620 |
| D I S C O V E R Y | |
| Lithium was discovered in 1817 by J.A. Arfvedson at Stockholm, Sweden. |
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| G E O L O G I C A L D A T A | |
| Abundances Sun (relative to H = 1 × 1012) : 10 Earth's crust / p.p.m. : 20 Residence time / years : 2 × 106 Classification : accumulating Oxidation state : I |
Seawater / p.p.m. : 0.17 |
| B I O L O G I C A L D A T A | |
| Level in humans Blood / mg dm-3 : 0.004 Bone / p.p.m. : 1.3 Liver / p.p.m. : 0.025 Muscle / p.p.m. : 0.023 |
Daily dietary intake : 0.1 - 2 mg Total mass of element in average (70 kg) person : 7 mg |
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A portrait of lithium is available on the Visual Elements site. Up to 200 individual items of information on this element are available in The Elements. |