Name: Argon
Symbol: Ar
 
Atomic Number: 18
Atomic Weight: 39.948 g/mol
State: Gas @298K
Colour: None
 
Melting Point: 83.8 K
Boiling Point: 87.3 K
 
isotope amu abundance(%)
Ar36 35.9675 0.34
Ar38 37.9627 0.063
Ar40 39.9624 99.60