Lawrencium vs Flerovium

PropertyLr LawrenciumFl Flerovium
Atomic number103114
SymbolLrFl
NameLawrenciumFlerovium
Categoryactinidepost-transition-metal
Standard Atomic Weight262 u289 u
Period77
Group314
Blocksp
Phase at STPsolidgas
Electron configuration[Rn]7s25f146d1[Rn] 7s27p2 5f14 6d10(predicted)
Oxidation states[3][0, 1, 2, 4, 6]
Electronegativity (Pauling)N/AN/A
Electron affinity0.315 eV-0.5 eV
Density1.560000e+4 kg/m³9928 kg/m³
Melting point1626.85 °C-273.15 °C
Boiling point-273.15 °C-63.15 °C
Discovery year19611998