Thallium vs Nihonium

← Back to Periodic Table
PropertyTl ThalliumNh Nihonium
Atomic number81113
SymbolTlNh
NameThalliumNihonium
Categorypost-transition-metalpost-transition-metal
Standard Atomic Weight204.3835 u286 u
Period67
Group1313
Blockpp
Phase at STPsolidsolid
Electron configuration[Xe]6s24f145d106p1[Rn] 5f14 6d10 7s2 7p1(predicted)
Oxidation states[-5, -2, -1, 1, 2, 3]N/A
Electronegativity (Pauling)1.62N/A
Electron affinity0.377 eV0.6 eV
Density1.180000e+4 kg/m³1.600000e+4 kg/m³
Melting point303.85 °C426.85 °C
Boiling point1472.85 °C1156.85 °C
Discovery year18612004