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*'''Electron capture''' helps to achieve a more stable [[Atomic Nucleus|nucleus]] by reducing [[proton]] number.
===Examples===
*'''Electron capture''' occurs in [[Beryllium-7]] to form [[Lithium-7]].*During the the [[Weak Nuclear Interaction|weak interaction]] by which '''electron capture''' occurs several quantities can be shown to be conserved:{| class="wikitable"|+<math>p + e^- \rightarrow n + \nu_e</math>| style="height:20px; width:150px; text-align:center;" || style="height:20px; width:50px; text-align:center;" |<math>p</math>| style="height:20px; width:50px; text-align:center;" |<math>+</math>| style="height:20px; width:50px; text-align:center;" |<math>e^-</math>| style="height:20px; width:50px; text-align:center;" |<math>\rightarrow</math>| style="height:20px; width:50px; text-align:center;" |<math>n</math>| style="height:20px; width:50px; text-align:center;" |<math>+</math>| style="height:20px; width:50px; text-align:center;" |<math>\nu_e</math>|-| style="height:20px; width:150px; text-align:center;" |[[Conservation of Charge|Charge]]| style="height:20px; width:50px; text-align:center;" |<math>+1</math>| style="height:20px; width:50px; text-align:center;" |<math>+</math>| style="height:20px; width:50px; text-align:center;" |<math>-1</math>| style="height:20px; width:50px; text-align:center;" |<math>=</math>| style="height:20px; width:50px; text-align:center;" |<math>0</math>| style="height:20px; width:50px; text-align:center;" |<math>+</math>| style="height:20px; width:50px; text-align:center;" |<math>0</math>|-| style="height:20px; width:150px; text-align:center;" |[[Conservation of Baryon Number|Baryon Number]]| style="height:20px; width:50px; text-align:center;" |<math>+1</math>| style="height:20px; width:50px; text-align:center;" |<math>+</math>| style="height:20px; width:50px; text-align:center;" |<math>0</math>| style="height:20px; width:50px; text-align:center;" |<math>=</math>| style="height:20px; width:50px; text-align:center;" |<math>+1</math>| style="height:20px; width:50px; text-align:center;" |<math>+</math>| style="height:20px; width:50px; text-align:center;" |<math>0</math>|-| style="height:20px; width:150px; text-align:center;" |[[Conservation of Lepton Number|Lepton Number]]| style="height:20px; width:50px; text-align:center;" |<math>0</math>| style="height:20px; width:50px; text-align:center;" |<math>+</math>| style="height:20px; width:50px; text-align:center;" |<math>+1</math>| style="height:20px; width:50px; text-align:center;" |<math>=</math>| style="height:20px; width:50px; text-align:center;" |<math>0</math>| style="height:20px; width:50px; text-align:center;" |<math>+</math>| style="height:20px; width:50px; text-align:center;" |<math>+1</math>|-| style="height:20px; width:150px; text-align:center;" |[[Conservation of Strangeness|Strangeness]]| style="height:20px; width:50px; text-align:center;" |<math>0</math>| style="height:20px; width:50px; text-align:center;" |<math>+</math>| style="height:20px; width:50px; text-align:center;" |<math>0</math>| style="height:20px; width:50px; text-align:center;" |<math>=</math>| style="height:20px; width:50px; text-align:center;" |<math>0</math>| style="height:20px; width:50px; text-align:center;" |<math>+</math>| style="height:20px; width:50px; text-align:center;" |<math>0</math>|}