Sodium vs Arsenic

PropertyNa SodiumAs Arsenic
Atomic number1133
SymbolNaAs
NameSodiumArsenic
Categoryalkali-metalmetalloid
Standard Atomic Weight22.989769 u74.921595 u
Period34
Group115
Blocksp
Phase at STPsolidsolid
Electron configuration[Ne]3s1[Ar]4s23d104p3
Oxidation states[-1, 0, 1][-3, -2, -1, 0, 1, 2, 3, 4, 5]
Electronegativity (Pauling)0.932.18
Electron affinity0.5479 eV0.81 eV
Density970 kg/m³5776 kg/m³
Melting point97.8 °C816.85 °C
Boiling point882.85 °C613.85 °C
Discovery year18071250