Silver vs Platinum

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PropertyAg SilverPt Platinum
Atomic number4778
SymbolAgPt
NameSilverPlatinum
Categorytransition-metaltransition-metal
Standard Atomic Weight107.8682 u195.084 u
Period56
Group1110
Blockss
Phase at STPsolidsolid
Electron configuration[Kr]5s14d10[Xe]6s14f145d9
Oxidation states[-2, -1, 0, 1, 2, 3][-3, -2, -1, 0, 1, 2, 3, 4, 5, 6]
Electronegativity (Pauling)1.932.28
Electron affinity1.302 eV2.1228 eV
Density1.050100e+4 kg/m³2.146000e+4 kg/m³
Melting point961.78 °C1768.4 °C
Boiling point2161.85 °C3824.85 °C
Discovery yearN/A1735