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Created page with "==Key Stage 2== ===Meaning=== Helium is a gas. ==Key Stage 3== ===Meaning=== right|300px|thumb|The [[Chemical Symbol|chemical symbol for He..."
==Key Stage 2==
===Meaning===
[[Helium]] is a [[gas]].
==Key Stage 3==
===Meaning===
[[File:HeliumSymbol.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Helium]].]]
[[Helium]] is a [[Noble Gas]] with 2 [[proton]]s in the [[Atomic Nucleus|nucleus]].
===About Helium===
: [[Helium]] has the [[Chemical Formula|chemical formula]] [[Helium|He]].
: [[Helium]] is [[inert]].
: [[Helium]] is a [[gas]] at [[STP|room temperature]].
: [[Helium]] [[gas]] is less [[density|dense]] than [[air]].
: An [[atom]] of [[Helium]] has two [[electron]]s in its [[Outer Shell|outer shell]].
==Key Stage 4==
===Meaning===
[[Helium]] is a [[non-metal]] [[element]] with 1 [[proton]] in the [[Atomic Nucleus|nucleus]].
===About Helium===
: [[Helium]] has the [[Chemical Formula|chemical formula]] [[Helium|He]].
: [[Helium]] is [[inert]].
: [[Helium]] is a [[gas]] at [[STP|standard temperature and pressure]].
: [[Helium]] [[gas]] is less [[density|dense]] than [[air]].
: An [[atom]] of [[Helium]] has two [[electron]]s in its [[Outer Shell|outer shell]].
===Meaning===
[[Helium]] is a [[gas]].
==Key Stage 3==
===Meaning===
[[File:HeliumSymbol.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Helium]].]]
[[Helium]] is a [[Noble Gas]] with 2 [[proton]]s in the [[Atomic Nucleus|nucleus]].
===About Helium===
: [[Helium]] has the [[Chemical Formula|chemical formula]] [[Helium|He]].
: [[Helium]] is [[inert]].
: [[Helium]] is a [[gas]] at [[STP|room temperature]].
: [[Helium]] [[gas]] is less [[density|dense]] than [[air]].
: An [[atom]] of [[Helium]] has two [[electron]]s in its [[Outer Shell|outer shell]].
==Key Stage 4==
===Meaning===
[[Helium]] is a [[non-metal]] [[element]] with 1 [[proton]] in the [[Atomic Nucleus|nucleus]].
===About Helium===
: [[Helium]] has the [[Chemical Formula|chemical formula]] [[Helium|He]].
: [[Helium]] is [[inert]].
: [[Helium]] is a [[gas]] at [[STP|standard temperature and pressure]].
: [[Helium]] [[gas]] is less [[density|dense]] than [[air]].
: An [[atom]] of [[Helium]] has two [[electron]]s in its [[Outer Shell|outer shell]].