Lanthanum vs Dubnium

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PropertyLa LanthanumDb Dubnium
Atomic number57105
SymbolLaDb
NameLanthanumDubnium
Categorylanthanidetransition-metal
Standard Atomic Weight138.90547 u268 u
Period67
GroupN/A5
Blockss
Phase at STPsolidN/A
Electron configuration[Xe]6s25d1[Rn]7s25f146d3
Oxidation states[0, 1, 2, 3][3, 4, 5]
Electronegativity (Pauling)1.1N/A
Electron affinity0.47 eV0.56 eV
Density6150 kg/m³2.930000e+4 kg/m³
Melting point917.85 °C-273.15 °C
Boiling point3463.85 °C-273.15 °C
Discovery year18391967