Electrons appear in electron clouds of atoms but positrons are found in cosmic rays and radioactive elements. Why do electrons seem more common then positrons?
Edit: Is this an example of asymmetry? I haven't studied it much yet.
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A great mystery of the universe – BioPhysicist Dec 30 '18 at 17:24
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6Possible duplicate of Baryon asymmetry – Kyle Kanos Dec 30 '18 at 17:34
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There are other similar questions on the subject of the asymmetry, some of which are linked in the above linked duplicate. – Kyle Kanos Dec 30 '18 at 17:35