Cadmium vs Tantalum

PropertyCd CadmiumTa Tantalum
Atomic number4873
SymbolCdTa
NameCadmiumTantalum
Categorytransition-metaltransition-metal
Standard Atomic Weight112.414 u180.94788 u
Period56
Group125
Blockss
Phase at STPsolidsolid
Electron configuration[Kr]5s24d10[Xe]6s24f145d3
Oxidation states[-2, 1, 2][-3, -1, 0, 1, 2, 3, 4, 5]
Electronegativity (Pauling)1.691.5
Electron affinity-0.7 eV0.322 eV
Density8690 kg/m³1.640000e+4 kg/m³
Melting point321.07 °C3016.85 °C
Boiling point766.85 °C5457.85 °C
Discovery year18171802