19,879
edits
Changes
→Key Stage 3
===Meaning===
[[File:ArgonSymbol.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Argon]].]]
[[Argon]] is a [[Group 0]] [[element]] with an [[Atomic Number|atomic number]] of 18.
===About Argon===
: [[Argon]] has the [[Chemical Formula|chemical formula]] [[Argon|Ne]].
: [[Argon]] is a [[gas]] at [[STP|room temperature]].
: An [[atom]] of [[Argon]] has a full [[Outer Shell|outer shell]] of 8 [[electron]]s so it is [[inert]].
==Key Stage 4==
===Meaning===