Argon (Ar)

Atomic number: 18
Symbol: Ar
Atomic weight: 39.948
Boiling Point (C): -185.8
Melting Point (C): -189.4
Density: 1.4
heatVapor: 1.56
heatFusion: .281
Electrical Conductivity: --
Thermal Conductivity: 4e-05
Specific Heat Capacity: .125