Technetium vs Bismuth

PropertyTc TechnetiumBi Bismuth
Atomic number4383
SymbolTcBi
NameTechnetiumBismuth
Categorytransition-metalpost-transition-metal
Standard Atomic Weight98 u208.9804 u
Period56
Group715
Blocksp
Phase at STPsolidsolid
Electron configuration[Kr]5s24d5[Xe]6s24f145d106p3
Oxidation states[-3, -1, 1, 2, 3, 4, 5, 6, 7][-3, -2, -1, 0, 1, 2, 3, 4, 5]
Electronegativity (Pauling)1.92.02
Electron affinity0.55 eV0.942 eV
Density1.100000e+4 kg/m³9807 kg/m³
Melting point2156.85 °C271.4 °C
Boiling point4264.85 °C1563.85 °C
Discovery year19371753