Thursday 20 December 2012

Argon=الأرجون


Argon=الأرجون
الأرجون عنصر غازي
WIKIPEDIA


Argon
 Ar
 Greek
 ἀργόν (argon)
 inactive
 argon
Greek argon means "inactive" (literally "slow").


Argon is a chemical element with symbol Ar and atomic number 18


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