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===Meaning===
[[File:ArgonSymbol.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Argon]].]]
[[Argon]] is a [[Group 0]] [[element]] , on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 18.
===About Argon===
: [[Argon]] has the [[Chemical Formula|chemical formula]] [[Argon|Ar]].
==Key Stage 4==
===Meaning===
[[Argon]] is a [[Group 0]] [[element]] , on the [[Periodic Table]], with 18 [[proton]]s in the [[Atomic Nucleus|nucleus]].
===About Argon===
: [[Argon]] has the [[Chemical Formula|chemical formula]] [[Argon|Ar]].