Palladium vs Osmium

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PropertyPd PalladiumOs Osmium
Atomic number4676
SymbolPdOs
NamePalladiumOsmium
Categorytransition-metaltransition-metal
Standard Atomic Weight106.42 u190.23 u
Period56
Group108
Blockds
Phase at STPsolidsolid
Electron configuration[Kr]4d10[Xe]6s24f145d6
Oxidation states[1, 2, 3, 4, 5][-4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8]
Electronegativity (Pauling)2.22.2
Electron affinity0.557 eV1.1 eV
Density1.200000e+4 kg/m³2.258720e+4 kg/m³
Melting point1554.9 °C3032.85 °C
Boiling point2962.85 °C5011.85 °C
Discovery year18031803