Indium vs Cesium

PropertyIn IndiumCs Cesium
Atomic number4955
SymbolInCs
NameIndiumCesium
Categorypost-transition-metalalkali-metal
Standard Atomic Weight114.818 u132.905452 u
Period56
Group131
Blockps
Phase at STPsolidsolid
Electron configuration[Kr]5s24d105p1[Xe]6s1
Oxidation states[-5, -2, -1, 0, 1, 2, 3][-1, 1]
Electronegativity (Pauling)1.780.79
Electron affinity0.3 eV0.4716 eV
Density7310 kg/m³1930 kg/m³
Melting point156.6 °C28.44 °C
Boiling point2071.85 °C670.85 °C
Discovery year18631860