Tin vs Tantalum

PropertySn TinTa Tantalum
Atomic number5073
SymbolSnTa
NameTinTantalum
Categorypost-transition-metaltransition-metal
Standard Atomic Weight118.71 u180.94788 u
Period56
Group145
Blockps
Phase at STPsolidsolid
Electron configuration[Kr]5s24d105p2[Xe]6s24f145d3
Oxidation states[-4, -3, -2, -1, 0, 1, 2, 3, 4][-3, -1, 0, 1, 2, 3, 4, 5]
Electronegativity (Pauling)1.961.5
Electron affinity1.112 eV0.322 eV
Density7287 kg/m³1.640000e+4 kg/m³
Melting point231.93 °C3016.85 °C
Boiling point2601.85 °C5457.85 °C
Discovery yearN/A1802