Praseodymium vs Seaborgium

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PropertyPr PraseodymiumSg Seaborgium
Atomic number59106
SymbolPrSg
NamePraseodymiumSeaborgium
Categorylanthanidetransition-metal
Standard Atomic Weight140.90766 u271 u
Period67
GroupN/A6
Blockss
Phase at STPsolidN/A
Electron configuration[Xe]6s24f3[Rn]7s25f146d4
Oxidation states[0, 1, 2, 3, 4, 5][3, 4, 5, 6]
Electronegativity (Pauling)1.13N/A
Electron affinity0.962 eV0.85 eV
Density6770 kg/m³3.500000e+4 kg/m³
Melting point930.85 °C-273.15 °C
Boiling point3519.85 °C-273.15 °C
Discovery year18851974