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:*[[Neutron]]s
:*[[Electron]]s
==Key Stage 5==
===Meaning===
A '''subatomic particle''' is any [[particle]] smaller than an [[atom]].
===About Subatomic Particles===
: '''Subatomic particles''' include all [[Fundamental Particle|fundamental particle]]s as well as some other low [[mass]] [[particle]]s made from a combination of [[Fundamental Particle|fundamental particles]].
: Some '''subatomic particles''' you should know are:
:*[[Lepton]]s - [[Fundamental Particle|Fundamental particles]]
:**[[Electron]] - A type of [[lepton]] with a [[mass]] of 9.11x10<sup>-31</sup> and a [[Electrical Charge|charge]] of 1.60x10<sup>-19</sup>.
:**[[Muon]] - A type of [[lepton]] often referred to as a 'heavy electron' same [[Electrical Charge|charge]] as an [[electron]] (1.60x10<sup>-19</sup>) but a [[mass]] 206 times the [[mass]] of an [[electron]].
:**[[Neutrino]] - A type of [[lepton]] with zero [[Electrical Charge|charge]] and negligible [[mass]].
:*[[Quark]]s - A group of '''subatomic particle''' believed to be [[Fundamental Particle|fundamental]] but have never been on their own. They always exists in either a triplet of [[quark]]s or a [[quark]]-[[antiquark]] pair.
:*[[Hadron]]s - '''Subatomic particles''' made of [[quark]]s.
:**[[Baryon]]s - A type of [[hadron]] made of 3 [[quark]]s.
:***[[Proton]] - A type of [[baryon]] made of 2 [[Up-quark]]s and 1 [[Down-quark]].
:***[[Neutron]] - A type of [[baryon]] made of 2 [[Down-quark]]s and 1 [[Up-quark]]
:**[[Meson]]s - Types of [[hadron]] consisting of a [[quark]]-[[antiquark]] pair.
:*[[Boson]]s - '''Subatomic particles''' which mediate the [[Fundamental Interactions|fundamental interactions]].
:**[[Photon]] - A type of [[boson]] which mediates the [[Electromagnetic Interaction|electromagnetic interaction]].
:**[[W-boson]] - A type of [[boson]] which mediates the [[Weak Nuclear Interaction|weak nuclear interaction]].
:**[[Z-boson]] - A type of [[boson]] which mediates the [[Weak Nuclear Interaction|weak nuclear interaction]].