Gadolinium vs Nihonium

PropertyGd GadoliniumNh Nihonium
Atomic number64113
SymbolGdNh
NameGadoliniumNihonium
Categorylanthanidepost-transition-metal
Standard Atomic Weight157.25 u286 u
Period67
GroupN/A13
Blocksp
Phase at STPsolidsolid
Electron configuration[Xe]6s24f75d1[Rn] 5f14 6d10 7s2 7p1(predicted)
Oxidation states[0, 1, 2, 3]N/A
Electronegativity (Pauling)1.2N/A
Electron affinity0.132 eV0.6 eV
Density7900 kg/m³1.600000e+4 kg/m³
Melting point1312.85 °C426.85 °C
Boiling point3272.85 °C1156.85 °C
Discovery year18862004