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Tungsten


6
74
183.84
KEY
Chemical Element Symbol Key

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Tungsten
Columbia Encyclopedia
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Rhenium (Re)
Symbol: W
Atomic Number: 74
Atomic Weight: 183.84
Element Classification: Transition Metal
Discovered By: Juan Jose, Fausto Elhuyar
Discovery Date: 1783 (Spain)
Name Origin: Swedish: tung sten (heavy stone): symbol from its German name wolfram.
Density (g/cc): 19.3
Melting Point (K): 3680
Boiling Point (K): 5930
Appearance: Tough, steel-gray to white metal
Atomic Radius (pm): 141
Atomic Volume (cc/mol): 9.53
Covalent Radius (pm): 130
Ionic Radius: 62 (+6e) 70 (+4e)
Specific Heat (@20°C J/g mol): 0.133
Fusion Heat (kJ/mol): (35)
Evaporation Heat (kJ/mol): 824
Thermal Conductivity (@25°C W/m K):
Debye Temperature (K): 310.00
Pauling Negativity Number: 1.7
First Ionizing Energy (kJ/mol): 769.7
Oxidation States: 6, 5, 4, 3, 2, 0
Electronic Configuration: [Xe] 4f14 5d4 6s2
Lattice Structure: Body-Centered Cubic (BCC
Lattice Constant (Å): 3.160
Lattice C/A Ratio: n/a


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