Ruthenium vs Bismuth

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PropertyRu RutheniumBi Bismuth
Atomic number4483
SymbolRuBi
NameRutheniumBismuth
Categorytransition-metalpost-transition-metal
Standard Atomic Weight101.07 u208.9804 u
Period56
Group815
Blocksp
Phase at STPsolidsolid
Electron configuration[Kr]5s14d7[Xe]6s24f145d106p3
Oxidation states[-4, -2, 1, 2, 3, 4, 5, 6, 7, 8][-3, -2, -1, 0, 1, 2, 3, 4, 5]
Electronegativity (Pauling)2.22.02
Electron affinity1.05 eV0.942 eV
Density1.210000e+4 kg/m³9807 kg/m³
Melting point2333.85 °C271.4 °C
Boiling point4149.85 °C1563.85 °C
Discovery year18281753