Periodic Table of Elements showing Chromium transition elements


Atomic Number24
Molar Mass52 gmol-1
Electron Configuration[Ar]3d54s1
Normal Statesolid metal
Density @STP7.19 g cm-3
Melting Point1907oC
Boiling Point2671oC
Stable Isotopes50Cr, 52Cr, 53Cr, 54Cr
Atomic Radius129 pm
Ionic Radius84 (2+) pm
Electronegativity (Pauling)1.66
Ionization Energy (1st)653 kJ mol-1
Ionization Energy (2nd)1492 kJ mol-1
Ionization Energy (3rd)2987 kJ mol-1
Molar Heat Capacity23.4 J K-1mol-1
Standard Molar Entropy23.8 J K-1mol-1
Enthalpy of Fusion15.3 kJ mol-1
Enthalpy of Vapourization348.78 kJ mol-1
[Back to Periodic table]

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