Tantalum Facts - Periodic Table of the Elements

Tantalum Facts - Periodic Table of the Elements Tantalum Basic Facts Nuclear Number: 73 Image: Ta Nuclear Weight: 180.9479 Disclosure: Anders Ekeberg 1802 (Sweden), indicated that niobic corrosive and tantalic corrosive were two unique substances. Electron Configuration: [Xe] 6s2 4f14 5d3 Word Origin: Greek Tantalos, legendary character, lord who was father of Niobe Isotopes: There are 25 known isotopes of tantalum. Regular tantalum comprises of 2 isotopes. Properties: Tantalum is an overwhelming, hard dark metal. Unadulterated tantalum is pliable and might be brought into fine wire. Tantalum is for all intents and purposes invulnerable to substance assault at temperatures lower than 150  °C. It is just assaulted by hydrofluoric corrosive, acidic arrangements of the fluoride particle, and free sulfur trioxide. Soluble bases assault tantalum gradually. At higher temperatures, tantalum is increasingly receptive. The liquefying purpose of tantalum is high, surpassed uniquely by that of tungsten and rhenium. The softening purpose of tantalum is 2996  °C; breaking point is 5425/ - 100  °C; explicit gravity is 16.654; valence is typically 5, however might be 2, 3, or 4. Utilizations: Tantalum wire is utilized as a fiber for dissipating different metals. Tantalum is fused into an assortment of compounds, presenting high dissolving point, malleability, quality, and consumption obstruction. Tantalum carbide is probably the hardest material at any point made. At high temperatures, tantalum has great gettering capacity. Tantalum oxide films are steady, with attractive dielectric and correcting properties. The metal is utilized in compound procedure gear, vacuum heaters, capacitors, atomic reactors, and airplane parts. Tantalum oxide might be utilized to make a glass with a high file of refraction, with applications including use for camera focal points. Tantalum is safe to body fluids and is a non-disturbing metal. Along these lines, it has broad careful applications. Sources: Tantalum is found basically in the mineral columbite-tantalite (Fe, Mn)(Nb, Ta)2O6. Tantalum metals are found in Australia, Zaire, Brazil, Mozambique, Thailand, Portugal, Nigeria, and Canada. A muddled procedure is required to expel tantalum from the mineral. Component Classification: Transition Metal Tantalum Physical Data Thickness (g/cc): 16.654 Softening Point (K): 3269 Breaking point (K): 5698 Appearance: substantial, hard dim metal Nuclear Radius (pm): 149 Nuclear Volume (cc/mol): 10.9 Covalent Radius (pm): 134 Ionic Radius: 68 (5e) Explicit Heat (20 °C J/g mol): 0.140 Combination Heat (kJ/mol): 24.7 Vanishing Heat (kJ/mol): 758 Debye Temperature (K): 225.00 Pauling Negativity Number: 1.5 First Ionizing Energy (kJ/mol): 760.1 Oxidation States: 5 Cross section Structure: Body-Centered Cubic Cross section Constant (Ã… ): 3.310 References: Los Alamos National Laboratory (2001), Crescent Chemical Company (2001), Langes Handbook of Chemistry (1952), CRC Handbook of Chemistry Physics (eighteenth Ed.) Come back to the Periodic Table