Scandium - angew. Mineralogie

21 Sc Scandium

`Atomic number`		`21`
`Symbol`		`Sc`
`Atomic weight`		`44.955940`
`Density [g/cm³]`		`2.99`
`Melting point [°C]`		`1539`
`Boiling point [°C]`		`2832`
`1st Ionization energy [eV]`		`6.54`
`Electronic configuration`		`[Ar] 3d 4s²`
`Oxidation number (most stable)`		`3`
`Atomic radius [pm]`		`160.6`
`Ionic radius [pm]`		`75 (3+)`
`Abundance in crustal rocks [ppm]`		`25`
`Origin of the name`		`(lat.) Scandia = Scandinavia`
`Discovery`		`1879 by the Swede Nilson`
`Uses`		`at present no technical importance.`

© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst

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