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Tantalum

Tantalum is a chemical element; it has symbol Ta and atomic number 73. It is named after Tantalus, a figure in Greek mythology. Tantalum is a very hard, ductile, lustrous, blue-gray transition metal that is highly corrosion-resistant. It is part of the refractory metals group, which are widely used as components of strong high-melting-point alloys. It is…

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Key facts & relationships

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177Ta
synth
178Ta
synth
179Ta
synth
180mTa
0.0120%
180Ta
synth
181Ta
99.988%

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Overview

History

Characteristics

Chemical compounds

Occurrence

Status as a conflict resource

Production and fabrication

Applications

Precautions

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Map overview Semantic statistics

Tantalum

Nodes214
Edges213
Triples271
Avg. degree1.99
Density0.009346
Components1

How this topic connects Entity context

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Tantalum

Top relations

related to Occurrence · 34
Tantalum → Australia, Brazil, Canada, China, During, Earth's, Ethiopia, Fe, February, Global Advanced Metals, Greenbushes, January, Less, Malaysia, Mg, Mn, Mozambique, Nb, Other, Pilbara
related to history · 33
Tantalum → After Friedrich Wöhler, Although, Anders Ekeberg, Bolton, Charles Hatchett, Charlottenburg, Christian Wilhelm Blomstrand, De Marignac, Early, English, Finland, Further, German, Hatchett, Heinrich Rose, Henri Etienne Sainte-Claire Deville, In, Jean Charles Galissard, Louis, Marignac
related to Production and fabrication · 21
Tantalum → Although Ta, H2, It, Nb, Nb/Ta, NbF6, NbF7, NbOF5, NbOF7, Other, Separation, Subsequent, Ta, Ta/Nb, Ta2O5, TaF7, TaOF5, The, This, Thus
related to Status as a conflict resource · 17
Tantalum → According, Burundi, Central Africa, Coltan, Congo, Congo Basin, Democratic Republic, Ethical, January, October, Rwanda, Survey, The United States Geological, United Nations, USGS, World War II, Zaire
related to Other uses · 12
Tantalum → Audemars Piguet, Due, Hublot, It, Journe, Montblanc, NASA, Omega, Panerai, Spherical, The, Voyager
related to Precautions · 12
Tantalum → Compounds, Health, Health Administration, NIOSH, Occupational Safety, OSHA, People, REL, The, The National Institute, The Occupational Safety, There
related to Environmental issues · 9
Tantalum → Analysis, And, Little, Nb/Ta, Some, The, UCC, Upper Crust Concentration, Values
related to Halides · 9
Tantalum → It, Ta, Ta-Ta, TaCl5, TaF5, TaF72, TaX3, TaX4, The
related to Oxides, nitrides, carbides, sulfides · 9
Tantalum → Lanthanum, LaTaO4, LiTaO3, Lithium, Oxides, Ta2O5, Tantalates, TaO3, TaO43
related to Physical properties · 7
Tantalum → Bulk, HN, It, Knoop, P42/mnm, Tantalum's, The

Important terminology Word statistics

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Important terminology

niobium used ta metal high tantalite chemical oxides melting due also production point element oxide metals use compounds two nb

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Tantalum177Tasynth1.00infobox
Tantalum178Tasynth1.00infobox
Tantalum179Tasynth1.00infobox
Tantalum180mTa0.0120%1.00infobox
Tantalum180Tasynth1.00infobox
Tantalum181Ta99.988%1.00infobox
Tantalum182Tasynth1.00infobox
Tantalum183Tasynth1.00infobox
TantalumAppearancegray blue1.00infobox
Tantalumat T (K)32971.00infobox
TantalumAtomic number (Z)731.00infobox
TantalumAtomic radiusempirical: 146 pm1.00infobox
TantalumBlockd-block1.00infobox
TantalumBoiling point5731 K ​(5458 °C, ​9856 °F)1.00infobox
TantalumBrinell hardness440–3430 MPa1.00infobox
TantalumBulk modulus200 GPa1.00infobox
TantalumCAS Number7440-25-71.00infobox
TantalumCovalent radius170±8 pm1.00infobox
TantalumCrystal structure​body-centered cubic (bcc) (cI2)1.00infobox
TantalumDensity (at 20° C)16.678 g/cm31.00infobox
TantalumDiscoveryAnders Gustaf Ekeberg (1802)1.00infobox
TantalumElectrical resistivity131 nΩ⋅m (at 20 °C)1.00infobox
TantalumElectron configuration[Xe] 4f14 5d3 6s21.00infobox
TantalumElectronegativityPauling scale: 1.51.00infobox
TantalumElectrons per shell2, 8, 18, 32, 11, 21.00infobox
TantalumGroupgroup 51.00infobox
TantalumHeat of fusion36.57 kJ/mol1.00infobox
TantalumHeat of vaporization753 kJ/mol1.00infobox
TantalumIonization energies1st: 761 kJ/mol1.00infobox
TantalumIonization energies2nd: 1500 kJ/mol1.00infobox

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