Chrome

Symbol: Cr
Atomic number: 24
atomic mass: 51.996 g/mol
Number of charges: 3, 6
Separation equivalent: 10.773 mg/amine (3), 5.388 mg/amine (6)
Density: 7.14 g/cm3
Standard potential: -0.744 V (3), -0.913V (6)
Melting point: 1907°C
Electronegativity: 1.66 (Pauling scale)