Antimony vs Copernicium

PropertySb AntimonyCn Copernicium
Atomic number51112
SymbolSbCn
NameAntimonyCopernicium
Categorymetalloidtransition-metal
Standard Atomic Weight121.76 u285 u
Period57
Group1512
Blockps
Phase at STPsolidgas
Electron configuration[Kr]5s24d105p3[Rn] 7s2 5f14 6d10(predicted)
Oxidation states[-3, -2, -1, 0, 1, 2, 3, 4, 5][2, 4]
Electronegativity (Pauling)2.05N/A
Electron affinity1.07 eV-0.8 eV
Density6685 kg/m³1.400000e+4 kg/m³
Melting point630.63 °C-273.15 °C
Boiling point1586.85 °C-165.15 °C
Discovery year17071996