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:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Electrons; periodic table, pages 70-71, Gateway GCSE Chemistry, Oxford, OCR '']
:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Electrons; redox reactions, page 111, Gateway GCSE Chemistry, Oxford, OCR '']
==Key Stage 5==
===Meaning===
An [[electron]] is a [[Subatomic Particle|subatomic particle]] with a [[Negative Charge|negative charge]] and a very small [[mass]].
===About Electrons===
*'''Electrons''' are fundamental [[particle]]s classified as [[leptons]].
*The [[Rest Mass|rest mass]] of an '''electron''' is 9.11×10<sup>−31</sup>kg.
*An '''electron''' has an [[Electrical Charge|electrical charge]] of −1.60×10<sup>−19</sup> [[Coulomb]]s.
*'''Electrons''' participate in [[Chemical Bond|chemical bonding]] and [[electricity]].
*'''Electrons''' can be emitted from a [[metal]] surface through the [[Photoelectric Effect|photoelectric effect]] when exposed to [[Electromagnetic Wave|electromagnetic radiation]] of sufficient [[frequency]].
*'''Electrons''' move around the [[Atomic Nucleus|nucleus]] of an [[atom]] in discrete [[Energy Level|energy levels]] or [[Electron Shell|shells]].
*'''Electrons''' can move between [[Energy Level|energy levels]] in [[atom]]s by absorbing the exact [[energy]] required from an incident [[photon]] or from the [[Kinetic Energy|kinetic energy]] of another '''electron''' [[Collide|colliding]] with it.
*The [antimatter]] counterpart of the '''electron''' is the [[positron]].