Sulfur vs Thallium

← Back to Periodic Table
PropertyS SulfurTl Thallium
Atomic number1681
SymbolSTl
NameSulfurThallium
Categorynonmetalpost-transition-metal
Standard Atomic Weight32.0675 u204.3835 u
Period36
Group1613
Blockpp
Phase at STPsolidsolid
Electron configuration[Ne]3s23p4[Xe]6s24f145d106p1
Oxidation states[-2, -1, 0, 1, 2, 3, 4, 5, 6][-5, -2, -1, 1, 2, 3]
Electronegativity (Pauling)2.581.62
Electron affinity2.0771 eV0.377 eV
Density2067 kg/m³1.180000e+4 kg/m³
Melting point115.21 °C303.85 °C
Boiling point444.6 °C1472.85 °C
Discovery year17771861