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[[Helium]] is a [[gas]].
==Key Stage 3==
[[File:HeliumSymbol1.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Helium]].]]
[[File:He-4_WK.PNG|right|200px|thumb|A 2 dimensional representation of a [[Helium]] [[atom]] with 2 [[proton]]s and 2 [[neutron]]s in the [[Atomic Nucleus|nucleus]] and 2 [[electron]]s orbiting the [[Atomic Nucleus|nucleus]].]]
===Meaning===
===About Helium===
: [[Helium]] has the [[Chemical Formula|chemical formula]] [[Helium|He]].
==Key Stage 4==
[[File:HeKS4.png|right|200px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Helium]].]]
[[File:He-4_WK.PNG|right|200px|thumb|A 2 dimensional representation of the [[Bohr Model]] of a [[Helium]]-4 [[isotope]] with 2 [[proton]]s and 2 [[neutron]]s in the [[Atomic Nucleus|nucleus]] and 2 [[electron]]s in its [[Outer Shell|outer shell]].]]
===Meaning===
[[Helium]] is a [[Group 0]] [[element]] , on the [[Periodic Table]], with 2 [[proton]]s in the [[Atomic Nucleus|nucleus]].
===About Helium===
: [[Helium]] has the [[Chemical Formula|chemical formula]] [[Helium|He]].
| style="height:20px; width:200px; text-align:center;" colspan = "2"|[[Helium]] always has 2 [[proton]]s. The most [[Stable Isotope|stable]] [[isotope]] has 2 [[neutron]]s.
|}
==Beyond the Curriculum==
{{#ev:youtube|https://www.youtube.com/watch?v=hLUcO26Q7wE}}
===References===
====AQA====
:[https://www.amazon.co.uk/gp/product/019835939X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=019835939X&linkCode=as2&tag=nrjc-21&linkId=57e96876985fc39b1a3d8a3e3dc238b6 ''Helium, page 106, GCSE Physics; Third Edition, Oxford University Press, AQA '']
:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Helium, pages 109, 111-12, 130-1, 280-1, 283-4, 286-7, GCSE Physics; Student Book, Collins, AQA '']