Rhenium Facts - Periodic Table of the Elements

Rhenium Facts - Periodic Table of the Elements Rhenium is a heavy, silvery-white transition metal. The elements properties were predicted by Mendeleev when he designed his periodic table. Here is a collection of rhenium element facts. RheniumBasic Facts Symbol: Re Atomic Number: 75 Atomic Weight: 186.207 Electron Configuration: [Xe] 4f14 5d5 6s2 Element Classification: Transition Metal Discovery: Walter Noddack, Ida Tacke, Otto Berg 1925 (Germany) Name Origin: Latin: Rhenus, the Rhine River. RheniumPhysical Data Density (g/cc): 21.02 Melting Point (K): 3453 Boiling Point (K): 5900 Appearance: dense, silvery-white metal Atomic Radius (pm): 137 Atomic Volume (cc/mol): 8.85 Covalent Radius (pm): 128 Ionic Radius: 53 (7e) 72 (4e) Specific Heat (20Â °C J/g mol): 0.138 Fusion Heat (kJ/mol): 34 Evaporation Heat (kJ/mol): 704 Debye Temperature (K): 416.00 Pauling Negativity Number: 1.9 First Ionizing Energy (kJ/mol): 759.1 Oxidation States: 5, 4, 3, 2, -1 Lattice Structure: hexagonal Lattice Constant (Ã…): 2.760 Lattice C/A Ratio: 1.615 References: Los Alamos National Laboratory (2001), Crescent Chemical Company (2001), Langes Handbook of Chemistry (1952), CRC Handbook of Chemistry Physics (18th Ed.) Return to the Periodic Table