Noun
A rare metallic element of the boron group, whose existence was predicted under the provisional name ekaboron by means of the periodic law, and subsequently discovered by spectrum analysis in certain rare Scandinavian minerals (euxenite and gadolinite). It has not yet been isolated. Symbol Sc. Atomic weight 44.
Source: Webster's dictionaryDue to the large size of the La 3+ ion, La 2 O 3 adopts a hexagonal 7-coordinate structure that changes to the 6-coordinate structure of scandium oxide (Sc 2 O 3 ) and yttrium oxide (Y 2 O 3 ) at high temperature. Source: Internet
However, this position has sometimes been disputed, on the grounds that yttrium and to a lesser extent scandium are closer in their chemical properties to lutetium than lanthanum. Source: Internet
As is observed for most elements, a diatomic scandium hydride has been observed spectroscopically at high temperatures in the gas phase. Source: Internet
As well as the elements of groups 4 to 11, they add scandium and yttrium in group 3 which have a partially filled d subshell in the metallic state. Source: Internet
Despite this low level of use, scandium offers significant benefits. Source: Internet
Groups 3–10 have no trivial names and are referred to simply by their group numbers or by the name of the first member of their group (such as "the scandium group" for Group 3 ), since they display fewer similarities and/or vertical trends. Source: Internet