Tungsten
Symbol
W
Atomic Number
74
Atomic Weight
183.84
Element Classification
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
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
0.133
Fusion Heat
(35)
Evaporation Heat(kj/mol)
824
Thermal Conductivity(@25°C W/m K)
173
Debye Temperature
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
3.160
Lattice C/A Ratio
n/a
