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18
  Ar  
39.948000
Argon


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Name: Argon
Symbol: Ar
Atomic Number: 18
AtomicWeight: 39.948000
Family: noble gases
CAS RN: 7440-37-1
Description: An inert colorless gas
State (25 ° C): Gas
Oxidation states: 0
Valence Electrons: 3p6

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