Bismuth vs Rutherfordium

PropertyBi BismuthRf Rutherfordium
Atomic number83104
SymbolBiRf
NameBismuthRutherfordium
Categorypost-transition-metaltransition-metal
Standard Atomic Weight208.9804 u263 u
Period67
Group154
Blockps
Phase at STPsolidsolid
Electron configuration[Xe]6s24f145d106p3[Rn]7s25f146d2
Oxidation states[-3, -2, -1, 0, 1, 2, 3, 4, 5][3, 4]
Electronegativity (Pauling)2.02N/A
Electron affinity0.942 eV0.65 eV
Density9807 kg/m³2.330000e+4 kg/m³
Melting point271.4 °C2126.85 °C
Boiling point1563.85 °C5526.85 °C
Discovery year17531964