Arsenic vs Cesium

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PropertyAs ArsenicCs Cesium
Atomic number3355
SymbolAsCs
NameArsenicCesium
Categorymetalloidalkali-metal
Standard Atomic Weight74.921595 u132.905452 u
Period46
Group151
Blockps
Phase at STPsolidsolid
Electron configuration[Ar]4s23d104p3[Xe]6s1
Oxidation states[-3, -2, -1, 0, 1, 2, 3, 4, 5][-1, 1]
Electronegativity (Pauling)2.180.79
Electron affinity0.81 eV0.4716 eV
Density5776 kg/m³1930 kg/m³
Melting point816.85 °C28.44 °C
Boiling point613.85 °C670.85 °C
Discovery year12501860