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symbol for the element tantalumtantalum
[from Tantalus], metallic chemical element; symbol Ta; at. no. 73; at. wt. 180.94788; m.p. 2,996°C;; b.p. 5,400±100°C;; sp. gr. 16.65 at 20°C;; valence +2, +3, +4, or +5.
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(Terminal Adapter) See ISDN terminal adapter.
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