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==Key Stage 3==
[[File:NitrogenSymbol1.png|right|300px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Nitrogen]].]]
[[File:Nitrgon2dWKNitrogen2dWK.PNG|right|200px|thumb|A 2 dimensional representation of a [[Nitrogen]] [[atom]] with 7 [[proton]]s and 7 [[neutron]]s in the [[Atomic Nucleus|nucleus]] and 7 [[electron]]s orbiting the [[Atomic Nucleus|nucleus]].]]
===Meaning===