Iron
Symbol
Fe
Atomic Number
26
Atomic Weight
55.847
Element Classification
Discovered By
Known to the ancients.
Discovery Date
n/a (Unknown)
Name Origin
Anglo-Saxon: iron; symbol from Latin: ferrum (iron).
Density (g/cc)
7.874
Melting Point (K)
1808
Boiling Point (K)
3023
Appearance
Malleable, ductile, silvery-white metal
Atomic Radius (pm)
126
Atomic Volume (cc/mol)
7.1
Covalent Radius (pm)
117
Ionic Radius
64 (+3e) 74 (+2e)
Specific Heat
0.443
Fusion Heat (kJ/mol)
13.8
Evaporation Heat (kJ/mol)
~340
Thermal Conductivity (@25°C W/m K)
80.4
Debye Temperature (K)
460.00
Pauling Negativity Number
1.83
First Ionizing Energy (kJ/mol)
759.1
Oxidation States
6, 3, 2, 0, -2
Electronic Configuration
[Ar] 3d6 4s2
Lattice Structure
Body-Centered Cubic(BCC)
Lattice Constant
2.870
Lattice C/A Ratio
n/a
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