HyperDic: atomic_number_21

English > 1 sense of the expression atomic number 21:
NOUNsubstanceatomic number 21, scandium, Sca white trivalent metallic element
English > atomic number 21: 1 sense > noun 1, substance
MeaningA white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite.
Synonymsscandium, Sc
Broadermetallic element, metalAny of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
Substance ofthortveititeA mineral consisting of scandium yttrium silicate
Spanishescandio, número atómico 21, Sc
Catalanescandi, número atòmic 21, Sc

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