Erbium vs Lead

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PropertyEr ErbiumPb Lead
Atomic number6882
SymbolErPb
NameErbiumLead
Categorylanthanidepost-transition-metal
Standard Atomic Weight167.259 u207.2 u
Period66
GroupN/A14
Blocksp
Phase at STPsolidsolid
Electron configuration[Xe]6s24f12[Xe]6s24f145d106p2
Oxidation states[0, 1, 2, 3][-4, -2, -1, 0, 1, 2, 3, 4]
Electronegativity (Pauling)1.242.33
Electron affinity0.312 eV0.364 eV
Density9070 kg/m³1.134200e+4 kg/m³
Melting point1528.85 °C327.46 °C
Boiling point2867.85 °C1748.85 °C
Discovery year18432021