This question already has an answer here:

  1. What is the idea behind Pauli s exclusion principle?

  2. Why should an electron or any particle having non integral spin obey this principle?


marked as duplicate by Kyle Kanos, Void, John Rennie, Ali, DavePhD Oct 8 '14 at 17:28

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.