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Properties of Metals - Metallurgy
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Rhenium
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.
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 (@20°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 (Å): 2.760
Lattice C/A Ratio: 1.615
References: Los Alamos National Laboratory (2001), Crescent Chemical Company (2001), Lange's Handbook of Chemistry (1952), CRC Handbook of Chemistry & Physics (18th Ed.)
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.
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 (@20°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 (Å): 2.760
Lattice C/A Ratio: 1.615
References: Los Alamos National Laboratory (2001), Crescent Chemical Company (2001), Lange's Handbook of Chemistry (1952), CRC Handbook of Chemistry & Physics (18th Ed.)
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Ref: R75
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