Scandium vs Chromium

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PropertySc ScandiumCr Chromium
Atomic number2124
SymbolScCr
NameScandiumChromium
Categorytransition-metaltransition-metal
Standard Atomic Weight44.955908 u51.9961 u
Period44
Group36
Blockss
Phase at STPsolidsolid
Electron configuration[Ar]4s23d1[Ar]3d54s1
Oxidation states[0, 1, 2, 3][-4, -2, -1, 0, 1, 2, 3, 4, 5, 6]
Electronegativity (Pauling)1.361.66
Electron affinity0.188 eV0.675 eV
Density2990 kg/m³7150 kg/m³
Melting point1540.85 °C1906.85 °C
Boiling point2835.85 °C2670.85 °C
Discovery year18791797