Sc (Scandium)

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     Scandium is a much more abundant element in the Sun and in certain stars than here on Earth. The blue colour of beryl (the aquamarine variety) is attributed to scandium.

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Scandium, Skandium, Skandij, Scandium - s, Scandio, Скандий, Escandio

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Overview of Scandium
Atomic Number 21
Group 3
Period 4
Series Transition Metals
Atomic Mass Average:  44.95591
Boiling Point:  3104K 2831°C 5128°F
Melting Point:  1812K 1539°C 2802°F
Discovery Year:  1879
Name Origin: From Latin Scandia for Scandinavia.
Relative Atomic Mass (12C=12.000)  44.956
Boiling Point 3104K 2831°C 5128°F
Melting Point 1812K 1539°C 2802°F
Density/kg m-3  2989 (273K)
Ground State Electron Configuration  [Ar]3d14s2
Electron Affinity(M-M-)/kJ mol-1  70
Atomic Mass Average: 44.95591
Discovered L.F. Nilson
Discovered Location Uppsala, Sweden
Discovery Year 1879
Name Origin From Latin Scandia for Scandinavia.


     Scandium is not widely used. Scandium iodide is added to mercury vapour lamps to produce a highly efficient light source resembling sunlight, which is important for indoor lighting and night-time colour television screens. The radioactive isotope 46Sc is used as a tracing agent in refinery crackers for crude oil. However, the potential for scandium is great because it has almost as low a density as aluminium and has a much higher melting point, so it has attracted the interest of spacecraft designers.

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Scandium is a chemical element with symbol Sc and atomic number 21. A silvery-white metallic transition metal, it has historically been sometimes classified as a rare earth element, together with yttrium and the lanthanoids.

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