Gadolinium vs Bismuth

PropertyGd GadoliniumBi Bismuth
Atomic number6483
SymbolGdBi
NameGadoliniumBismuth
Categorylanthanidepost-transition-metal
Standard Atomic Weight157.25 u208.9804 u
Period66
GroupN/A15
Blocksp
Phase at STPsolidsolid
Electron configuration[Xe]6s24f75d1[Xe]6s24f145d106p3
Oxidation states[0, 1, 2, 3][-3, -2, -1, 0, 1, 2, 3, 4, 5]
Electronegativity (Pauling)1.22.02
Electron affinity0.132 eV0.942 eV
Density7900 kg/m³9807 kg/m³
Melting point1312.85 °C271.4 °C
Boiling point3272.85 °C1563.85 °C
Discovery year18861753