1) Atomic number 73 2) Chemical element 3) Element discovered in 1802 4) Element number 73 5) Element with the symbol Ta 6) Metal 7) Metallic element 8) Refractory metal
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1) Ta
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https://www.crosswordclues.com/clue/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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http://en.wikipedia.org/wiki/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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(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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http://www.britannica.com/eb/a-z/t/11
(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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http://www.daviddarling.info/encyclopedia/T/tantalum.html
<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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http://www.encyclo.co.uk/local/20973
(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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http://www.encyclo.co.uk/local/21001
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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http://www.encyclo.co.uk/webster/T/10
(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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http://www.medilexicon.com/medicaldictionary.php?t=89663
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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[
n] - a hard gray lustrous metallic element that is highly corrosion-resistant
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http://www.webdictionary.co.uk/definition.php?query=tantalum
A rare metal of silver white color having excellent corrosion resistance and a high melting point. It is widely used for chemical process equipment and specialised aero-space and nuclear applications.
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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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https://www.encyclo.co.uk/local/20687
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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https://www.encyclo.co.uk/local/20974
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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https://www.encyclo.co.uk/local/21221
A by-product of tin processing, this refractory metal is used as a barrier to corrosion of chemical processing and carbide cutting tools, and still-growing use as electronic capacitors and filaments. Melts at 2415 degrees Fahrenheit.
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