Silver vs Samarium

PropertyAg SilverSm Samarium
Atomic number4762
SymbolAgSm
NameSilverSamarium
Categorytransition-metallanthanide
Standard Atomic Weight107.8682 u150.36 u
Period56
Group11N/A
Blockss
Phase at STPsolidsolid
Electron configuration[Kr]5s14d10[Xe]6s24f6
Oxidation states[-2, -1, 0, 1, 2, 3][0, 1, 2, 3]
Electronegativity (Pauling)1.931.17
Electron affinity1.302 eV0.156 eV
Density1.050100e+4 kg/m³7520 kg/m³
Melting point961.78 °C1073.85 °C
Boiling point2161.85 °C1793.85 °C
Discovery yearN/A1878