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[[Argon]] is a [[gas]].
==Key Stage 3==
[[File:ArgonSymbol1.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Argon]].]]
[[File:Argon2dWK.PNG|right|200px|thumb|A 2 dimensional representation of a [[Argon]] [[atom]] with 18 [[proton]]s and 22 [[neutron]]s in the [[Atomic Nucleus|nucleus]] and 18 [[electron]]s orbiting the [[Atomic Nucleus|nucleus]].]]
===Meaning===
[[Argon]] is a [[Group 0]] [[element]], on the [[Periodic Table]], with an [[Atomic Number|atomic number]] of 18.
===About Argon===