- a rare, trivalent, metallic element obtained from thortveitite. Symbol: Sc; atomic weight: 44.956; atomic number: 21; specific gravity: 3.0.
Origin of scandium
Examples from the Web for scandium
Historical Examples of scandium
Other elements are named from countries or localities, as germanium and scandium.An Elementary Study of Chemistry
In 1875 Lecoq de Boisbandram discovered gallium, which filled one of the gaps; scandium and germanium filled the other two later.
And there are also scandium oxide molecules making unfamiliar faces at us.The Sky Trap
Frank Belknap Long
Its group members, scandium and yttrium, have the same form; we have not examined the fourth; the group is positive.
In yttrium, on the proto level, a 110 and b 63 both escape from the funnel, and behave as in scandium.
- a rare light silvery-white metallic element occurring in minute quantities in numerous minerals. Symbol: Sc; atomic no: 21; atomic wt: 44.955910; valency: 3; relative density: 2.989; melting pt: 1541°C; boiling pt: 2836°C
Word Origin for scandium
Word Origin and History for scandium
1879, from Modern Latin Scandia (see Scandinavia) + chemical ending -ium.
- A highly reactive metallic element found in various rare minerals and separated as a byproduct in the processing of certain uranium ores. Atomic number 21.
- A soft, silvery, very lightweight metallic element that is found in various rare minerals and is a byproduct in the processing of certain uranium ores. It has a high melting point and is used to make high-intensity lights. Atomic number 21; atomic weight 44.956; melting point 1,540°C; boiling point 2,850°C; specific gravity 2.99; valence 3. See Periodic Table.