Vanadium vs Tantalum

PropertyV VanadiumTa Tantalum
Atomic number2373
SymbolVTa
NameVanadiumTantalum
Categorytransition-metaltransition-metal
Standard Atomic Weight50.9415 u180.94788 u
Period46
Group55
Blockss
Phase at STPsolidsolid
Electron configuration[Ar]4s23d3[Xe]6s24f145d3
Oxidation states[-3, -1, 0, 1, 2, 3, 4, 5][-3, -1, 0, 1, 2, 3, 4, 5]
Electronegativity (Pauling)1.631.5
Electron affinity0.525 eV0.322 eV
Density6000 kg/m³1.640000e+4 kg/m³
Melting point1909.85 °C3016.85 °C
Boiling point3406.85 °C5457.85 °C
Discovery year18301802