| Sc | Scandium | Atomic number : 21 Relative atomic mass (12C = 12.0000) : 44.955910 |
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| P H Y S I C A L D A T A | |
| Group 3 transition metal Density / kg m-3 : 2989 [273 K] |
Melting point / K : 1814 Boiling point / K : 3104 |
| D I S C O V E R Y | |
| Discovered in 1879 by L.F. Nilson at Uppsala, 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) : 1100 Earth's crust / p.p.m. : 16 Residence time / years : 5000 Classification : recycled Oxidation state : recycled |
Seawater / p.p.m. : Atlantic surface : 6.1 × 10-7 Atlantic deep : 8.8 × 10-7 Pacific surface : 3.5 × 10-7 Pacific deep : 7.9 × 10-7 |
| B I O L O G I C A L D A T A | |
| Level in humans Blood / mg dm-3 : c. 0.008 Organs: III |
Daily dietary intake : c. 0.00005 mg Total mass of element in average (70 kg) person : c. 0.2 mg |
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A portrait of scandium is available on the Visual Elements site. Up to 200 individual items of information on this element are available in The Elements. |