Indium vs Einsteinium

PropertyIn IndiumEs Einsteinium
Atomic number4999
SymbolInEs
NameIndiumEinsteinium
Categorypost-transition-metalactinide
Standard Atomic Weight114.818 u252 u
Period57
Group13N/A
Blockps
Phase at STPsolidsolid
Electron configuration[Kr]5s24d105p1[Rn]7s25f11
Oxidation states[-5, -2, -1, 0, 1, 2, 3][2, 3, 4]
Electronegativity (Pauling)1.781.3
Electron affinity0.3 eV-0.3 eV
Density7310 kg/m³8840 kg/m³
Melting point156.6 °C859.85 °C
Boiling point2071.85 °C-273.15 °C
Discovery year18631952