Periodic Table of the Elements: Argon


Name: Argon
Symbol: Ar
Atomic Number: 18
Atomic Mass: 39.948
Atomic Volume: 24.12 cc/mol
Discovered By: Lord Rayleigh and Ramsay
Discovery Date: 1894
Origin of Name: Argon - (Greek) argos (inactive)
Toxicity: ???
Summary: Argon is an inert gas. Argon makes up 0.94% of the atmosphere.


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HHe
LiBeBCNOFNe
NaMgAlSiPSClAr
KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLr

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