Gadolinium vs Platinum

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PropertyGd GadoliniumPt Platinum
Atomic number6478
SymbolGdPt
NameGadoliniumPlatinum
Categorylanthanidetransition-metal
Standard Atomic Weight157.25 u195.084 u
Period66
GroupN/A10
Blockss
Phase at STPsolidsolid
Electron configuration[Xe]6s24f75d1[Xe]6s14f145d9
Oxidation states[0, 1, 2, 3][-3, -2, -1, 0, 1, 2, 3, 4, 5, 6]
Electronegativity (Pauling)1.22.28
Electron affinity0.132 eV2.1228 eV
Density7900 kg/m³2.146000e+4 kg/m³
Melting point1312.85 °C1768.4 °C
Boiling point3272.85 °C3824.85 °C
Discovery year18861735