Argon vs Mercury

PropertyAr ArgonHg Mercury
Atomic number1880
SymbolArHg
NameArgonMercury
Categorynoble-gastransition-metal
Standard Atomic Weight39.948 u200.592 u
Period36
Group1812
Blockps
Phase at STPgasliquid
Electron configuration[Ne]3s23p6[Xe]6s24f145d10
Oxidation states[0][-2, 1, 2]
Electronegativity (Pauling)N/A2
Electron affinity-1 eV-0.5 eV
Density1.7837 kg/m³1.353360e+4 kg/m³
Melting point-189.35 °C-38.83 °C
Boiling point-185.85 °C356.73 °C
Discovery year1894N/A