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

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