Home 21 Sc Scandium back to the periodic table

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.

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