Thallium vs Flerovium

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PropertyTl ThalliumFl Flerovium
Atomic number81114
SymbolTlFl
NameThalliumFlerovium
Categorypost-transition-metalpost-transition-metal
Standard Atomic Weight204.3835 u289 u
Period67
Group1314
Blockpp
Phase at STPsolidgas
Electron configuration[Xe]6s24f145d106p1[Rn] 7s27p2 5f14 6d10(predicted)
Oxidation states[-5, -2, -1, 1, 2, 3][0, 1, 2, 4, 6]
Electronegativity (Pauling)1.62N/A
Electron affinity0.377 eV-0.5 eV
Density1.180000e+4 kg/m³9928 kg/m³
Melting point303.85 °C-273.15 °C
Boiling point1472.85 °C-63.15 °C
Discovery year18611998