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→About The Elementary Charge
: During the [[Weak Nuclear Interaction|weak interaction]] both [[quark]]s and [[lepton]]s can change in [[Electrical Charge|charge]] by a [[magnitude]] of the '''elementary charge'''.
{| borderclass="1" style="border-collapse:collapsewikitable"
| style="height:20px; width:250px; text-align:center;"|[[Subatomic Particle|Particle]]
| style="height:20px; width:250px; text-align:center;"|[[Electrical Charge|Charge]]/'''e'''
|-
| style="height:20px; width:250px; text-align:center;"|[[Proton]] (<math>p</math>)
| style="height:20px; width:250px; text-align:center;"|<math>+1</math>
|-
| style="height:20px; width:250px; text-align:center;"|[[Electron]] (<math>e</math>)
|-
| style="height:20px; width:250px; text-align:center;"|[[π-meson|π<sup>+</sup> meson]] (<math>\pi^+</math>)
| style="height:20px; width:250px; text-align:center;"|<math>+1</math>
|-
| style="height:20px; width:250px; text-align:center;"|[[π-meson|π<sup>-</sup> meson]] (<math>\pi^-</math>)