Chromium                                          
 

Atomic Number (# of protons)

24

Mass (amu)

52.00

Density

7.19 g/cm3 (200C, 1 atm)

Electron Configuration

[Ar]3d54s1

Oxidation States (bold = most stable)

+6,+3,+2

Atomic Radius (pm)

125

Ionic Radius (pm)

(+3)62

Electronegativity

1.6

Melting Point (0C, 1 atm)

1863

Electron Affinity (eV)

0.67

Boiling Point(0C, 1 atm)

2672

1st Ionization energy (eV)

6.77

Enthalpy of Fusion (kJ/mole)

15.31

2nd Ionization Energy (eV)

Enthalpy of Vaporization (kJ/mole)

348.8

3rd Ionization Energy (eV)

Specific Heat Capacity ( J/ (g K), 250C, 1 atm)

0.45

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