Definitions for: Tantalum

[n] a hard gray lustrous metallic element that is highly corrosion-resistant; occurs in niobite and fergusonite and tantalite

Webster (1913) Definition: Tan"ta*lum, n. [NL. So named on account of the
perplexity and difficulty encounterd by its discoverer
(Ekeberg) in isolating it. See Tantalus.] (Chem.)
A rare nonmetallic element found in certain minerals, as
tantalite, samarskite, and fergusonite, and isolated as a
dark powder which becomes steel-gray by burnishing. Symbol
Ta. Atomic weight 182.0. Formerly called also tantalium.

Synonyms: atomic number 73, Ta

See Also: columbite, fergusonite, metal, metallic element, niobite, tantalite

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