Chromium vs Antimony

PropertyCr ChromiumSb Antimony
Atomic number2451
SymbolCrSb
NameChromiumAntimony
Categorytransition-metalmetalloid
Standard Atomic Weight51.9961 u121.76 u
Period45
Group615
Blocksp
Phase at STPsolidsolid
Electron configuration[Ar]3d54s1[Kr]5s24d105p3
Oxidation states[-4, -2, -1, 0, 1, 2, 3, 4, 5, 6][-3, -2, -1, 0, 1, 2, 3, 4, 5]
Electronegativity (Pauling)1.662.05
Electron affinity0.675 eV1.07 eV
Density7150 kg/m³6685 kg/m³
Melting point1906.85 °C630.63 °C
Boiling point2670.85 °C1586.85 °C
Discovery year17971707