Lead vs Dubnium

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PropertyPb LeadDb Dubnium
Atomic number82105
SymbolPbDb
NameLeadDubnium
Categorypost-transition-metaltransition-metal
Standard Atomic Weight207.2 u268 u
Period67
Group145
Blockps
Phase at STPsolidN/A
Electron configuration[Xe]6s24f145d106p2[Rn]7s25f146d3
Oxidation states[-4, -2, -1, 0, 1, 2, 3, 4][3, 4, 5]
Electronegativity (Pauling)2.33N/A
Electron affinity0.364 eV0.56 eV
Density1.134200e+4 kg/m³2.930000e+4 kg/m³
Melting point327.46 °C-273.15 °C
Boiling point1748.85 °C-273.15 °C
Discovery year20211967