Vanadium vs Astatine

PropertyV VanadiumAt Astatine
Atomic number2385
SymbolVAt
NameVanadiumAstatine
Categorytransition-metalhalogen
Standard Atomic Weight50.9415 u210 u
Period46
Group517
Blocksp
Phase at STPsolidsolid
Electron configuration[Ar]4s23d3[Xe]6s24f145d106p5
Oxidation states[-3, -1, 0, 1, 2, 3, 4, 5][-1, 1, 3, 5, 7]
Electronegativity (Pauling)1.632.2
Electron affinity0.525 eV2.391 eV
Density6000 kg/m³7000 kg/m³
Melting point1909.85 °C301.85 °C
Boiling point3406.85 °C-273.15 °C
Discovery year18301940