Tantalum

Tantalum is a chemical element with the symbol Ta and atomic number 73. Previously known as tantalium, its name comes from Tantalus, a character from Greek mythology. Tantalum is a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant. It is part of the refractory metals group, which are widely used as minor component...
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tantalum

(Ta) (tan´tә-lәm) a chemical element, atomic number 73, atomic weight 180.948. It is a noncorrosive and malleable metal used for plates or disks to repair cranial defects, for wire sutures, and for making prosthetic appliances.
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tantalum

(Ta), chemical element, very hard, silver-gray metal of Group Vb of the periodic table, characterized by its high density, extremely high melting ... [5 related articles]
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tantalum

[n] - a hard gray lustrous metallic element that is highly corrosion-resistant
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Tantalum

• (n.) 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.
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tantalum

<chemistry> 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. ... Origin: NL. So named on account of the perplexity and difficulty encounterd by its discoverer (Ek...
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tantalum

Ta noun a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
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tantalum

(Ta) Tantalum. Credit: Smithsonian Institution A very hard, dense, gray metallic element ; it lies in group VB of the periodic table and is a transition element. It is found in the mineral columbite along with niobium, which it resembles closely. Tantalum oxide is sep...
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tantalum

(Ta) Type: Term Pronunciation: tan′tă-lŭm Definitions: 1. A heavy metal of the vanadium group, atomic no. 73, atomic wt. 180.9479; used in surgical prostheses because of its noncorrosive properties.
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Tantalum

Tan'ta·lum noun [ New Latin So named on account of the perplexity and difficulty encounterd by its discoverer (Ekeberg) in isolating it. See Tantalus .] (Chemistry) A rare nonmetallic element found in certain minerals, as tantalite, samarskite, and fergusonite, and isolated as a dark powder...
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tantalum

Hard, ductile, lustrous, grey-white, metallic element, atomic number 73, relative atomic mass 180.948. It occurs with niobium in tantalite and other minerals. It can be drawn into wire with a very high melting point and great tenacity, useful for lamp filaments subject to vibration. It is also used in alloys, for corrosion-resistant laborat...
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tantalum

tantalum (tăn'tulum) [from Tantalus], metallic chemical element; symbol Ta; at. no. 73; at. wt. 180.9479; m.p. 2,996°C; b.p. 5,400±100°C; sp. gr. 16.65 at 20°C; valence +2, +3, +4, or +5. Tantalum is a rare, hard, blue-gray metal with a body-centered cubic crystalline stru...
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Tantalum

Tantalum is a rare silvery-looking metal element with the symbol Ta. It is found chiefly in tantalite and obtained by reducing to potassium flouro-tantalate by means of sodium followed by fusion in vacuo. Tantalum is used as a wire in electric lamps. Tantalum was discovered by A G Ekeberg in 1802, but the metal was not isolated until 1905. Combined...
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Tantalum

Tantalum is a shiny, silvery coloured metal which is heavy, dense, malleable and ductile when pure. It is found in small quantities in minerals (generally in conjunction with niobium), and is isolated by conversion to the oxide and then the fluoro-complex, K2 TaF7 , from which the pure metal is obtained by electrolysis. Tantalum is extremely corros...
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