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Statistical laws explain differences

 
Atoms obey different statistical laws depending upon their character. If they contain an even number of particles they are called bosons and obey Bose-Einstein statistics. If the number of particles is odd they are called fermions and obey Fermi-Dirac statistics. Any number of bosons can occupy the same quantum state, whereas only one fermion can occupy a given state. This fact is the reason for the large differences between bosons and fermions at low temperatures.

 

 



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