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==Key Stage 4==
[[File:KKS4.PNG|right|200px|thumb|The [[Chemical Symbol|chemical symbol]] for [[Potassium]].]]
[[File:Potassium2dWK.PNG|right|200px|thumb|A 2 dimensional representation of the [[Bohr Model]] of a [[Potassium]]-39 [[isotope]] with 19 [[proton]]s and 20 [[neutron]]s in the [[Atomic Nucleus|nucleus]] and 19 [[electron]]s orbiting the [[Atomic Nucleus|nucleus]].]]
===Meaning===
[[Potassium]] is a [[Group 1]] [[element]], on the [[Periodic Table]], with 19 [[proton]]s in the [[Atomic Nucleus|nucleus]].