Antimony vs Rutherfordium

← Back to Periodic Table
PropertySb AntimonyRf Rutherfordium
Atomic number51104
SymbolSbRf
NameAntimonyRutherfordium
Categorymetalloidtransition-metal
Standard Atomic Weight121.76 u263 u
Period57
Group154
Blockps
Phase at STPsolidsolid
Electron configuration[Kr]5s24d105p3[Rn]7s25f146d2
Oxidation states[-3, -2, -1, 0, 1, 2, 3, 4, 5][3, 4]
Electronegativity (Pauling)2.05N/A
Electron affinity1.07 eV0.65 eV
Density6685 kg/m³2.330000e+4 kg/m³
Melting point630.63 °C2126.85 °C
Boiling point1586.85 °C5526.85 °C
Discovery year17071964