Praseodymium vs Nihonium

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PropertyPr PraseodymiumNh Nihonium
Atomic number59113
SymbolPrNh
NamePraseodymiumNihonium
Categorylanthanidepost-transition-metal
Standard Atomic Weight140.90766 u286 u
Period67
GroupN/A13
Blocksp
Phase at STPsolidsolid
Electron configuration[Xe]6s24f3[Rn] 5f14 6d10 7s2 7p1(predicted)
Oxidation states[0, 1, 2, 3, 4, 5]N/A
Electronegativity (Pauling)1.13N/A
Electron affinity0.962 eV0.6 eV
Density6770 kg/m³1.600000e+4 kg/m³
Melting point930.85 °C426.85 °C
Boiling point3519.85 °C1156.85 °C
Discovery year18852004