Periodic Table of Elements showing Iron transition elements


Atomic Number26
Molar Mass55.85 gmol-1
Electron Configuration[Ar]3d64s2
Normal Statesolid metal
Density @STP7.87 g cm-3
Melting Point1538oC
Boiling Point2861oC
Stable Isotopes54Fe, 56Fe, 57Fe, 58Fe
Atomic Radius124 pm
Ionic Radius82 (2+) pm
Electronegativity (Pauling)1.83
Ionization Energy (1st)759 kJ mol-1
Ionization Energy (2nd)1561 kJ mol-1
Ionization Energy (3rd)2957 kJ mol-1
Molar Heat Capacity25.1 J K-1mol-1
Standard Molar Entropy27.3 J K-1mol-1
Enthalpy of Fusion14.9 kJ mol-1
Enthalpy of Vapourization351 kJ mol-1
[Back to Periodic table]

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